I started to join the Check Point User Group (CPUG) forum, which is an open community and non-profit group. Check Point also has their official forum community on their website. So I signed up on Check Point UserCenter portal in order to get the latest news, track certifications and avail tech support. Having these two will help me jumpstart in learning Check Point network security products and technologies.
I'm also going to create a separate blog for my Check Point Certified Security Administrator (CCSA) track. I've already started studying and building my CCSA lab and will soon share my notes and experience with it. Below is the EIGRP lab which I did while studying for my Network+ certification.
R1(config)#no ip domain-lookup
R1(config)#enable secret cisco
R1(config)#banner motd &
Enter TEXT message. End with the character '&'
********************************
AUTHORIZED ACCESS ONLY
********************************
&
R1(config)#line console 0
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#logging synchronous
R1(config-line)#line vty 0 4
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#logging synchronous
R2(config)#no ip domain-lookup
R2(config)#enable secret cisco
R2(config)#banner motd &
Enter TEXT message. End with the character '&'
********************************
AUTHORIZED ACCESS ONLY
********************************
&
R2(config)#line console 0
R2(config-line)#password cisco
R2(config-line)#login
R2(config-line)#logging synchronous
R2(config-line)#line vty 0 4
R2(config-line)#password cisco
R2(config-line)#login
R2(config-line)#logging synchronous
R3(config)#no ip domain-lookup
R3(config)#enable secret cisco
R3(config)#banner motd &
Enter TEXT message. End with the character '&'
********************************
AUTHORIZED ACCESS ONLY
********************************
&
R3(config)#line console 0
R3(config-line)#password cisco
R3(config-line)#login
R3(config-line)#logging synchronous
R3(config-line)#line vty 0 4
R3(config-line)#password cisco
R3(config-line)#login
R3(config-line)#logging synchronous
R1(config)#interface fastethernet0/0
R1(config-if)#ip address 172.16.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#
*Jan 3 12:22:58.807: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Jan 3 12:22:59.807: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R1(config-if)#
R1(config-if)#interface serial0/0/0
R1(config-if)#ip address 172.16.3.1 255.255.255.252
R1(config-if)#clock rate 64000
R1(config-if)#no shutdown
R1(config-if)#
*Jan 3 12:23:34.007: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down
R1(config-if)#
R1(config-if)#interface serial0/0/1
R1(config-if)#ip address 192.168.10.5 255.255.255.252
R1(config-if)#no shutdown
R1(config-if)#
*Jan 3 12:24:00.435: %LINK-3-UPDOWN: Interface Serial0/0/1, changed state to down
R2(config)#interface fastethernet0/0
R2(config-if)#ip address 172.16.2.1 255.255.255.0
R2(config-if)#no shutdown
R2(config-if)#
*Jan 3 12:17:35.099: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Jan 3 12:17:36.099: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R2(config-if)#
R2(config-if)#interface serial0/0/0
R2(config-if)#ip address 172.16.3.2 255.255.255.252
R2(config-if)#no shutdown
R2(config-if)#
*Jan 3 12:17:59.887: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up
*Jan 3 12:18:00.887: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R2(config-if)#
R2(config-if)#interface serial0/0/1
R2(config-if)#ip address 192.168.10.9 255.255.255.252
R2(config-if)#clock rate 64000
R2(config-if)#no shutdown
R2(config-if)#
*Jan 3 12:18:27.527: %LINK-3-UPDOWN: Interface Serial0/0/1, changed state to down
R2(config-if)#
R2(config-if)#interface loopback1
R2(config-if)#
*Jan 3 12:18:45.003: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
R2(config-if)#
R2(config-if)#ip address 10.1.1.1 255.255.255.252
R3(config)#interface fastethernet0/0
R3(config-if)#ip address 192.168.1.1 255.255.255.0
R3(config-if)#no shutdown
R3(config-if)#
*Jan 3 12:27:18.551: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Jan 3 12:27:19.551: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R3(config-if)#
R3(config-if)#interface serial0/0/0
R3(config-if)#ip address 192.168.10.6 255.255.255.252
R3(config-if)#clock rate 64000
R3(config-if)#no shutdown
R3(config-if)#
*Jan 3 12:29:31.859: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up
*Jan 3 12:29:32.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R3(config-if)#
R3(config-if)#interface serial0/0/1
R3(config-if)#ip address 192.168.10.10 255.255.255.252
R3(config-if)#no shutdown
R3(config-if)#
*Jan 3 12:29:54.923: %LINK-3-UPDOWN: Interface Serial0/0/1, changed state to up
*Jan 3 12:29:55.923: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/1, changed state to up
R1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.16.1.1 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 172.16.3.1 YES manual up up
Serial0/0/1 192.168.10.5 YES manual up up
Serial0/1/0 unassigned YES NVRAM administratively down down
Serial0/1/1 unassigned YES NVRAM administratively down down
R2#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.16.2.1 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 172.16.3.2 YES manual up up
Serial0/0/1 192.168.10.9 YES manual up up
Loopback1 10.1.1.1 YES manual up up
R3#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.1 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 192.168.10.6 YES manual up up
Serial0/0/1 192.168.10.10 YES manual up up
R1(config)#router eigrp ?
<1-65535> Autonomous system number
R1(config)#router eigrp 1
R1(config-router)#?
Router configuration commands:
address-family Enter Address Family command mode
auto-summary Enable automatic network number summarization
bfd BFD configuration commands
default Set a command to its defaults
default-information Control distribution of default information
default-metric Set metric of redistributed routes
distance Define an administrative distance
distribute-list Filter networks in routing updates
eigrp EIGRP specific commands
exit Exit from routing protocol configuration mode
help Description of the interactive help system
maximum-paths Forward packets over multiple paths
metric Modify EIGRP routing metrics and parameters
neighbor Specify a neighbor router
network Enable routing on an IP network
no Negate a command or set its defaults
offset-list Add or subtract offset from RIP metrics
passive-interface Suppress routing updates on an interface
redistribute Redistribute information from another routing protocol
timers Adjust routing timers
traffic-share How to compute traffic share over alternate paths
variance Control load balancing variance
R1(config-router)#network 172.16.0.0 // CLASSFUL NETWORK IF NO WILD CARD MASK; EIGRP UPDATES WILL BE SENT OUT ON FE0/0 AND S0/0/0 INTERFACES
R1(config-router)#network 192.168.10.4 ?
A.B.C.D EIGRP wild card bits
<cr>
R1(config-router)#network 192.168.10.4 0.0.0.3 // ADVERTISE 192.168.10.4/30 NETWORK OUT S0/0/1 INTERFACE
R2(config)#router eigrp 1
R2(config-router)#network 172.16.0.0
R2(config-router)#
*Jan 3 13:10:52.959: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.3.1 (Serial0/0/0) is up: new adjacency // R2 FORMED EIGRP NEIGHBOR ADJACENCY WITH R1 VIA S0/0/0 INTERFACE
R2(config-router)#network 192.168.10.8 0.0.0.3
R3(config)#router eigrp 1
R3(config-router)#network 192.168.1.0
R3(config-router)#network 192.168.10.4 0.0.0.3
R3(config-router)#
*Jan 3 13:23:27.675: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.5 (Serial0/0/0) is up: new adjacency // R3 FORMED EIGRP NEIGHBOR ADJACENCY WITH R1 VIA S0/0/0 INTERFACE
R3(config-router)#network 192.168.10.8 0.0.0.3
R3(config-router)#
*Jan 3 13:24:12.911: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.9 (Serial0/0/1) is up: new adjacency // R3 FORMED EIGRP NEIGHBOR ADJACENCY WITH R2 VIA S0/0/1 INTERFACE
R1#show ip eigrp neighbors
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
1 192.168.10.6 Se0/0/1 14 00:02:06 21 200 0 10
0 172.16.3.2 Se0/0/0 12 00:07:15 20 200 0 12
R1#show ip protocols
Routing Protocol is "eigrp 1" // AS NUMBER MUST BE THE SAME ON ALL ROUTERS IN ORDER TO ESTABLISH NEIGHBOR ADJACENCIES AND SHARE ROUTING INFO
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 1
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is in effect
Automatic address summarization:
192.168.10.0/24 for FastEthernet0/0, Serial0/0/0
Summarizing with metric 2169856
172.16.0.0/16 for Serial0/0/1
Summarizing with metric 28160
Maximum path: 4
Routing for Networks:
172.16.0.0
192.168.10.4/30
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 00:05:07
Gateway Distance Last Update
192.168.10.6 90 00:03:24
172.16.3.2 90 00:03:24
Distance: internal 90 external 170
R1#show ip route // EIGRP ROUTES ARE DENOTED WITH D FOR DUAL (DIFFUSING UPDATE ALGORITHM), WHICH IS THE ROUTING ALGORITHM USED BY EIGRP
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:06:50, Null0 // EIGRP SUMMARY ROUTE
C 192.168.10.4/30 is directly connected, Serial0/0/1
D 192.168.10.8/30 [90/2681856] via 192.168.10.6, 00:05:09, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks // PARENT/LEVEL 1 ROUTE
D 172.16.0.0/16 is a summary, 00:13:15, Null0 // EIGRP AUTO CREATES A SUMMARY ROUTE POINTING TO NULL0; IF A PACKET DESTINED FOR 172.16.0.0/16 IS SENT TO NULL0 INTERFACE IF IT DOESN'T MATCH ANY OF THE CHILD/LEVEL 2 ROUTE
C 172.16.1.0/24 is directly connected, FastEthernet0/0 // CHILD/LEVEL 2 ROUTE
D 172.16.2.0/24 [90/2172416] via 172.16.3.2, 00:11:03, Serial0/0/0 // CHILD/LEVEL 2 ROUTE
C 172.16.3.0/30 is directly connected, Serial0/0/0 // CHILD/LEVEL 2 ROUTE
D 192.168.1.0/24 [90/2172416] via 192.168.10.6, 00:05:07, Serial0/0/1 //
R3#show ip route // R3 IS GETTING 172.16.0.0/16 SUMMARIZED ROUTE FROM BOTH R1 AND R2; IT'S INCLUDED IN THE ROUTING TABLE SINCE THE TWO ARE EQUAL COST ROUTES (2172416)
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:14:46, Null0
C 192.168.10.4/30 is directly connected, Serial0/0/0
C 192.168.10.8/30 is directly connected, Serial0/0/1
D 172.16.0.0/16 [90/2172416] via 192.168.10.9, 00:13:59, Serial0/0/1
[90/2172416] via 192.168.10.5, 00:13:59, Serial0/0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R1#show interface serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.3.1/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec, // EIGRP METRIC: BANDWIDTH, DELAY, RELIABILITY AND LOAD (MTU NOT INCLUDED)
reliability 255/255, txload 1/255, rxload 1/255 //
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:03, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
843 packets input, 56982 bytes, 0 no buffer
Received 534 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
896 packets output, 59524 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1(config)#interface serial0/0/0
R1(config-if)#bandwidth ?
<1-10000000> Bandwidth in kilobits
inherit Specify that bandwidth is inherited
receive Specify receive-side bandwidth
R1(config-if)#bandwidth 64 // SERIAL LINK DEFAULTS TO 1544 Kbps; CHANGE BANDWIDTH TO CALCULATE CORRECT EIGRP METRIC; IT ONLY MODIFIES BANDWITH METRIC USED BY ROUTING PROTOCOL AND NOT THE PHYSICAL BANDWIDTH
R2(config)#interface serial0/0/0
R2(config-if)#bandwidth 64
R2(config-if)#interface serial0/0/1
R2(config-if)#bandwidth 1024
R3(config)#interface serial0/0/1
R3(config-if)#bandwidth 1024
R1#show interface serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.3.1/30
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:00, output 00:00:02, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
962 packets input, 64848 bytes, 0 no buffer
Received 573 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1012 packets output, 66854 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#show interface serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.3.2/30
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1005 packets input, 66486 bytes, 0 no buffer
Received 567 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
953 packets output, 64092 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R3#show interface serial0/0/1
Serial0/0/1 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 192.168.10.10/30
MTU 1500 bytes, BW 1024 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:03, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 768 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
840 packets input, 56267 bytes, 0 no buffer
Received 531 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
822 packets output, 55556 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:03:07, Null0
D 192.168.10.4/30 [90/3523840] via 192.168.10.10, 00:03:07, Serial0/0/1
C 192.168.10.8/30 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.16.0.0/16 is a summary, 00:02:45, Null0
D 172.16.1.0/24 [90/40514560] via 172.16.3.1, 00:03:12, Serial0/0/0 // SUCCESSOR ROUTE GOING TO PC1; CURRENTLY FORWARDING PACKET; FEASIBLE DISTANCE (FD) IS 40514560
C 172.16.2.0/24 is directly connected, FastEthernet0/0
C 172.16.3.0/30 is directly connected, Serial0/0/0
10.0.0.0/30 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Loopback1
D 192.168.1.0/24 [90/3014400] via 192.168.10.10, 00:03:07, Serial0/0/1
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:06:13, Null0
C 192.168.10.4/30 is directly connected, Serial0/0/1
D 192.168.10.8/30 [90/3523840] via 192.168.10.6, 00:06:01, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.16.0.0/16 is a summary, 00:34:15, Null0
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/40514560] via 172.16.3.2, 00:07:30, Serial0/0/0
C 172.16.3.0/30 is directly connected, Serial0/0/0
D 192.168.1.0/24 [90/2172416] via 192.168.10.6, 00:07:30, Serial0/0/1 // REPORTED DISTANCE (RD) IS 2172416 FEASIBILITY CONDITION (FC) IS MET WHEN A NEIGHBOR'S RD TO A NETWORK (192.168.1.0/24) IS LESS THAN THE LOCAL ROUTER'S FD TO THE SAME NETWORK
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:03:07, Null0
D 192.168.10.4/30 [90/3523840] via 192.168.10.10, 00:03:07, Serial0/0/1
C 192.168.10.8/30 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.16.0.0/16 is a summary, 00:02:45, Null0
D 172.16.1.0/24 [90/40514560] via 172.16.3.1, 00:03:12, Serial0/0/0
C 172.16.2.0/24 is directly connected, FastEthernet0/0
C 172.16.3.0/30 is directly connected, Serial0/0/0
10.0.0.0/30 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Loopback1
D 192.168.1.0/24 [90/3014400] via 192.168.10.10, 00:03:07, Serial0/0/1 // FD IS 3014400
2172416 < 3014400; THEREFORE R2 WILL CONSIDER R1 TO BE FEASIBLE SUCCESSOR (FS) TO 192.168.1.0/24
R2#show ip eigrp ?
<1-65535> Autonomous System
accounting IP-EIGRP Accounting
interfaces IP-EIGRP interfaces
neighbors IP-EIGRP neighbors
topology IP-EIGRP Topology Table
traffic IP-EIGRP Traffic Statistics
vrf Select a VPN Routing/Forwarding instance
R2#show ip eigrp topology
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.1)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.10.0/24, 1 successors, FD is 2169856
via Summary (3011840/0), Null0
P 192.168.10.4/30, 1 successors, FD is 2681856
via 192.168.10.10 (3523840/2169856), Serial0/0/1
P 192.168.1.0/24, 1 successors, FD is 2172416
via 192.168.10.10 (3014400/28160), Serial0/0/1
P 192.168.10.8/30, 1 successors, FD is 3011840
via Connected, Serial0/0/1
P 172.16.0.0/16, 1 successors, FD is 28160
via Summary (28160/0), Null0
P 172.16.1.0/24, 1 successors, FD is 2172416
via 172.16.3.1 (40514560/28160), Serial0/0/0
P 172.16.2.0/24, 1 successors, FD is 28160
via Connected, FastEthernet0/0
P 172.16.3.0/30, 1 successors, FD is 40512000
via Connected, Serial0/0/0
R2#show ip eigrp topology 192.168.1.0
IP-EIGRP (AS 1): Topology entry for 192.168.1.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2172416
Routing Descriptor Blocks:
192.168.10.10 (Serial0/0/1), from 192.168.10.10, Send flag is 0x0
Composite metric is (3014400/28160), Route is Internal
Vector metric:
Minimum bandwidth is 1024 Kbit
Total delay is 20100 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1
172.16.3.1 (Serial0/0/0), from 172.16.3.1, Send flag is 0x0
Composite metric is (41026560/2172416), Route is Internal
Vector metric:
Minimum bandwidth is 64 Kbit
Total delay is 40100 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
R3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:37:51, Null0
C 192.168.10.4/30 is directly connected, Serial0/0/0
C 192.168.10.8/30 is directly connected, Serial0/0/1
D 172.16.0.0/16 [90/2172416] via 192.168.10.5, 00:16:48, Serial0/0/0 // R1 IS THE SUCCESSOR FOR 172.16.0.0/16
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R3#show ip eigrp topology
IP-EIGRP Topology Table for AS(1)/ID(192.168.10.10)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.10.0/24, 1 successors, FD is 2169856
via Summary (2169856/0), Null0
P 192.168.10.4/30, 1 successors, FD is 2169856
via Connected, Serial0/0/0
P 192.168.1.0/24, 1 successors, FD is 28160
via Connected, FastEthernet0/0
P 192.168.10.8/30, 1 successors, FD is 3011840
via Connected, Serial0/0/1
P 172.16.0.0/16, 1 successors, FD is 2172416
via 192.168.10.5 (2172416/28160), Serial0/0/0
via 192.168.10.9 (3014400/28160), Serial0/0/1
R2 RD (3014400) > R1 FD 2172416
R1(config)#router eigrp 1
R1(config-router)#no auto-summary // DISABLES AUTO SUMMARIZATION
R1(config-router)#
*Jan 3 14:08:15.379: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.3.2 (Serial0/0/0) is resync: summary configured
*Jan 3 14:08:15.383: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.6 (Serial0/0/1) is resync: summary configured
R2(config)#router eigrp 1
R2(config-router)#no auto-summary
R2(config-router)#
*Jan 3 13:59:56.223: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.3.1 (Serial0/0/0) is resync: summary configured
*Jan 3 13:59:56.223: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.10 (Serial0/0/1) is resync: summary configured
R3(config)#router eigrp 1
R3(config-router)#no auto-summary
R3(config-router)#
*Jan 3 14:07:44.391: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.5 (Serial0/0/0) is resync: summary configured
*Jan 3 14:07:44.391: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.9 (Serial0/0/1) is resync: summary configured
R3#show ip route // INDIVIDUAL ROUTES ARE NOW PRESENT AND SUMMARY NULL ROUTE IS GONE
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/0
C 192.168.10.8 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
D 172.16.1.0/24 [90/2172416] via 192.168.10.5, 00:01:48, Serial0/0/0
D 172.16.2.0/24 [90/3014400] via 192.168.10.9, 00:01:09, Serial0/0/1
D 172.16.3.0/30 [90/41024000] via 192.168.10.9, 00:01:09, Serial0/0/1
[90/41024000] via 192.168.10.5, 00:01:09, Serial0/0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R3(config)#interface loopback1 // ADD NEW SUBNETS ON R3
R3(config-if)#
*Jan 3 14:09:54.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
R3(config-if)#ip address 192.168.2.1 255.255.255.0
R3(config-if)#interface loopback2
R3(config-if)#
*Jan 3 14:10:09.723: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback2, changed state to up
R3(config-if)#ip address 192.168.3.1 255.255.255.0
R3(config-if)#router eigrp 1
R3(config-router)#network 192.168.2.0
R3(config-router)#network 192.168.3.0
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/1
D 192.168.10.8 [90/3523840] via 192.168.10.6, 00:04:03, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/3526400] via 192.168.10.6, 00:04:03, Serial0/0/1
C 172.16.3.0/30 is directly connected, Serial0/0/0
D 192.168.1.0/24 [90/2172416] via 192.168.10.6, 00:28:33, Serial0/0/1
D 192.168.2.0/24 [90/2297856] via 192.168.10.6, 00:00:52, Serial0/0/1
D 192.168.3.0/24 [90/2297856] via 192.168.10.6, 00:00:50, Serial0/0/1
R3(config)#interface serial0/0/0 // APPLY MANUAL ROUTE SUMMARIZATION ON OUTBOUND INTERFACES
R3(config-if)#ip summary-address ?
eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)
rip Routing Information Protocol (RIP)
R3(config-if)#ip summary-address eigrp ?
<1-65535> Autonomous system number
R3(config-if)#ip summary-address eigrp 1 ?
A.B.C.D IP address
R3(config-if)#ip summary-address eigrp 1 192.168.0.0 ?
A.B.C.D IP network mask
R3(config-if)#ip summary-address eigrp 1 192.168.0.0 255.255.252.0
R3(config-if)#
*Jan 3 14:12:49.307: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.5 (Serial0/0/0) is resync: summary configured
R3(config-if)#interface serial0/0/1
R3(config-if)#ip summary-address eigrp 1 192.168.0.0 255.255.252.0
R3(config-if)#
*Jan 3 14:12:56.303: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.9 (Serial0/0/1) is resync: summary configured
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/1
D 192.168.10.8 [90/3523840] via 192.168.10.6, 00:06:36, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/3526400] via 192.168.10.6, 00:06:36, Serial0/0/1
C 172.16.3.0/30 is directly connected, Serial0/0/0
D 192.168.0.0/22 [90/2172416] via 192.168.10.6, 00:01:02, Serial0/0/1 // EIGRP SUMMARY ROUTE FROM R3
R2(config)#ip route 0.0.0.0 0.0.0.0 loopback1 // CONFIGURE STATIC DEFAULT ROUTE ON R2 TO EXIT TO ISP
R2(config)#router eigrp 1
R2(config-router)#?
Router configuration commands:
address-family Enter Address Family command mode
auto-summary Enable automatic network number summarization
bfd BFD configuration commands
default Set a command to its defaults
default-information Control distribution of default information
default-metric Set metric of redistributed routes
distance Define an administrative distance
distribute-list Filter networks in routing updates
eigrp EIGRP specific commands
exit Exit from routing protocol configuration mode
help Description of the interactive help system
maximum-paths Forward packets over multiple paths
metric Modify EIGRP routing metrics and parameters
neighbor Specify a neighbor router
network Enable routing on an IP network
no Negate a command or set its defaults
offset-list Add or subtract offset from RIP metrics
passive-interface Suppress routing updates on an interface
redistribute Redistribute information from another routing protocol
timers Adjust routing timers
traffic-share How to compute traffic share over alternate paths
variance Control load balancing variance
R2(config-router)#redistribute ?
bgp Border Gateway Protocol (BGP)
connected Connected
eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)
isis ISO IS-IS
iso-igrp IGRP for OSI networks
metric Metric for redistributed routes
mobile Mobile routes
odr On Demand stub Routes
ospf Open Shortest Path First (OSPF)
rip Routing Information Protocol (RIP)
route-map Route map reference
static Static routes
<cr>
R2(config-router)#redistribute static // INCLUDE STATIC ROUTE IN EIGRP UPDATES
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 192.168.10.6 to network 0.0.0.0
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/1
D 192.168.10.8 [90/3523840] via 192.168.10.6, 00:09:56, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/3526400] via 192.168.10.6, 00:09:56, Serial0/0/1
C 172.16.3.0/30 is directly connected, Serial0/0/0
D*EX 0.0.0.0/0 [170/3651840] via 192.168.10.6, 00:01:33, Serial0/0/1
D 192.168.0.0/22 [90/2172416] via 192.168.10.6, 00:04:22, Serial0/0/1
R3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 192.168.10.9 to network 0.0.0.0
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/0
C 192.168.10.8 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
D 172.16.1.0/24 [90/2172416] via 192.168.10.5, 00:11:22, Serial0/0/0
D 172.16.2.0/24 [90/3014400] via 192.168.10.9, 00:10:44, Serial0/0/1
D 172.16.3.0/30 [90/41024000] via 192.168.10.9, 00:10:44, Serial0/0/1
[90/41024000] via 192.168.10.5, 00:10:44, Serial0/0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
C 192.168.2.0/24 is directly connected, Loopback1
C 192.168.3.0/24 is directly connected, Loopback2
D*EX 0.0.0.0/0 [170/3139840] via 192.168.10.9, 00:02:21, Serial0/0/1
D 192.168.0.0/22 is a summary, 00:05:09, Null0
I'm also going to create a separate blog for my Check Point Certified Security Administrator (CCSA) track. I've already started studying and building my CCSA lab and will soon share my notes and experience with it. Below is the EIGRP lab which I did while studying for my Network+ certification.
R1(config)#no ip domain-lookup
R1(config)#enable secret cisco
R1(config)#banner motd &
Enter TEXT message. End with the character '&'
********************************
AUTHORIZED ACCESS ONLY
********************************
&
R1(config)#line console 0
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#logging synchronous
R1(config-line)#line vty 0 4
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#logging synchronous
R2(config)#no ip domain-lookup
R2(config)#enable secret cisco
R2(config)#banner motd &
Enter TEXT message. End with the character '&'
********************************
AUTHORIZED ACCESS ONLY
********************************
&
R2(config)#line console 0
R2(config-line)#password cisco
R2(config-line)#login
R2(config-line)#logging synchronous
R2(config-line)#line vty 0 4
R2(config-line)#password cisco
R2(config-line)#login
R2(config-line)#logging synchronous
R3(config)#no ip domain-lookup
R3(config)#enable secret cisco
R3(config)#banner motd &
Enter TEXT message. End with the character '&'
********************************
AUTHORIZED ACCESS ONLY
********************************
&
R3(config)#line console 0
R3(config-line)#password cisco
R3(config-line)#login
R3(config-line)#logging synchronous
R3(config-line)#line vty 0 4
R3(config-line)#password cisco
R3(config-line)#login
R3(config-line)#logging synchronous
R1(config)#interface fastethernet0/0
R1(config-if)#ip address 172.16.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#
*Jan 3 12:22:58.807: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Jan 3 12:22:59.807: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R1(config-if)#
R1(config-if)#interface serial0/0/0
R1(config-if)#ip address 172.16.3.1 255.255.255.252
R1(config-if)#clock rate 64000
R1(config-if)#no shutdown
R1(config-if)#
*Jan 3 12:23:34.007: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down
R1(config-if)#
R1(config-if)#interface serial0/0/1
R1(config-if)#ip address 192.168.10.5 255.255.255.252
R1(config-if)#no shutdown
R1(config-if)#
*Jan 3 12:24:00.435: %LINK-3-UPDOWN: Interface Serial0/0/1, changed state to down
R2(config)#interface fastethernet0/0
R2(config-if)#ip address 172.16.2.1 255.255.255.0
R2(config-if)#no shutdown
R2(config-if)#
*Jan 3 12:17:35.099: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Jan 3 12:17:36.099: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R2(config-if)#
R2(config-if)#interface serial0/0/0
R2(config-if)#ip address 172.16.3.2 255.255.255.252
R2(config-if)#no shutdown
R2(config-if)#
*Jan 3 12:17:59.887: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up
*Jan 3 12:18:00.887: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R2(config-if)#
R2(config-if)#interface serial0/0/1
R2(config-if)#ip address 192.168.10.9 255.255.255.252
R2(config-if)#clock rate 64000
R2(config-if)#no shutdown
R2(config-if)#
*Jan 3 12:18:27.527: %LINK-3-UPDOWN: Interface Serial0/0/1, changed state to down
R2(config-if)#
R2(config-if)#interface loopback1
R2(config-if)#
*Jan 3 12:18:45.003: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
R2(config-if)#
R2(config-if)#ip address 10.1.1.1 255.255.255.252
R3(config)#interface fastethernet0/0
R3(config-if)#ip address 192.168.1.1 255.255.255.0
R3(config-if)#no shutdown
R3(config-if)#
*Jan 3 12:27:18.551: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Jan 3 12:27:19.551: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R3(config-if)#
R3(config-if)#interface serial0/0/0
R3(config-if)#ip address 192.168.10.6 255.255.255.252
R3(config-if)#clock rate 64000
R3(config-if)#no shutdown
R3(config-if)#
*Jan 3 12:29:31.859: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up
*Jan 3 12:29:32.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R3(config-if)#
R3(config-if)#interface serial0/0/1
R3(config-if)#ip address 192.168.10.10 255.255.255.252
R3(config-if)#no shutdown
R3(config-if)#
*Jan 3 12:29:54.923: %LINK-3-UPDOWN: Interface Serial0/0/1, changed state to up
*Jan 3 12:29:55.923: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/1, changed state to up
R1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.16.1.1 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 172.16.3.1 YES manual up up
Serial0/0/1 192.168.10.5 YES manual up up
Serial0/1/0 unassigned YES NVRAM administratively down down
Serial0/1/1 unassigned YES NVRAM administratively down down
R2#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.16.2.1 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 172.16.3.2 YES manual up up
Serial0/0/1 192.168.10.9 YES manual up up
Loopback1 10.1.1.1 YES manual up up
R3#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.1 YES manual up up
FastEthernet0/1 unassigned YES NVRAM administratively down down
Serial0/0/0 192.168.10.6 YES manual up up
Serial0/0/1 192.168.10.10 YES manual up up
R1(config)#router eigrp ?
<1-65535> Autonomous system number
R1(config)#router eigrp 1
R1(config-router)#?
Router configuration commands:
address-family Enter Address Family command mode
auto-summary Enable automatic network number summarization
bfd BFD configuration commands
default Set a command to its defaults
default-information Control distribution of default information
default-metric Set metric of redistributed routes
distance Define an administrative distance
distribute-list Filter networks in routing updates
eigrp EIGRP specific commands
exit Exit from routing protocol configuration mode
help Description of the interactive help system
maximum-paths Forward packets over multiple paths
metric Modify EIGRP routing metrics and parameters
neighbor Specify a neighbor router
network Enable routing on an IP network
no Negate a command or set its defaults
offset-list Add or subtract offset from RIP metrics
passive-interface Suppress routing updates on an interface
redistribute Redistribute information from another routing protocol
timers Adjust routing timers
traffic-share How to compute traffic share over alternate paths
variance Control load balancing variance
R1(config-router)#network 172.16.0.0 // CLASSFUL NETWORK IF NO WILD CARD MASK; EIGRP UPDATES WILL BE SENT OUT ON FE0/0 AND S0/0/0 INTERFACES
R1(config-router)#network 192.168.10.4 ?
A.B.C.D EIGRP wild card bits
<cr>
R1(config-router)#network 192.168.10.4 0.0.0.3 // ADVERTISE 192.168.10.4/30 NETWORK OUT S0/0/1 INTERFACE
R2(config)#router eigrp 1
R2(config-router)#network 172.16.0.0
R2(config-router)#
*Jan 3 13:10:52.959: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.3.1 (Serial0/0/0) is up: new adjacency // R2 FORMED EIGRP NEIGHBOR ADJACENCY WITH R1 VIA S0/0/0 INTERFACE
R2(config-router)#network 192.168.10.8 0.0.0.3
R3(config)#router eigrp 1
R3(config-router)#network 192.168.1.0
R3(config-router)#network 192.168.10.4 0.0.0.3
R3(config-router)#
*Jan 3 13:23:27.675: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.5 (Serial0/0/0) is up: new adjacency // R3 FORMED EIGRP NEIGHBOR ADJACENCY WITH R1 VIA S0/0/0 INTERFACE
R3(config-router)#network 192.168.10.8 0.0.0.3
R3(config-router)#
*Jan 3 13:24:12.911: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.9 (Serial0/0/1) is up: new adjacency // R3 FORMED EIGRP NEIGHBOR ADJACENCY WITH R2 VIA S0/0/1 INTERFACE
R1#show ip eigrp neighbors
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
1 192.168.10.6 Se0/0/1 14 00:02:06 21 200 0 10
0 172.16.3.2 Se0/0/0 12 00:07:15 20 200 0 12
R1#show ip protocols
Routing Protocol is "eigrp 1" // AS NUMBER MUST BE THE SAME ON ALL ROUTERS IN ORDER TO ESTABLISH NEIGHBOR ADJACENCIES AND SHARE ROUTING INFO
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 1
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is in effect
Automatic address summarization:
192.168.10.0/24 for FastEthernet0/0, Serial0/0/0
Summarizing with metric 2169856
172.16.0.0/16 for Serial0/0/1
Summarizing with metric 28160
Maximum path: 4
Routing for Networks:
172.16.0.0
192.168.10.4/30
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 00:05:07
Gateway Distance Last Update
192.168.10.6 90 00:03:24
172.16.3.2 90 00:03:24
Distance: internal 90 external 170
R1#show ip route // EIGRP ROUTES ARE DENOTED WITH D FOR DUAL (DIFFUSING UPDATE ALGORITHM), WHICH IS THE ROUTING ALGORITHM USED BY EIGRP
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:06:50, Null0 // EIGRP SUMMARY ROUTE
C 192.168.10.4/30 is directly connected, Serial0/0/1
D 192.168.10.8/30 [90/2681856] via 192.168.10.6, 00:05:09, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks // PARENT/LEVEL 1 ROUTE
D 172.16.0.0/16 is a summary, 00:13:15, Null0 // EIGRP AUTO CREATES A SUMMARY ROUTE POINTING TO NULL0; IF A PACKET DESTINED FOR 172.16.0.0/16 IS SENT TO NULL0 INTERFACE IF IT DOESN'T MATCH ANY OF THE CHILD/LEVEL 2 ROUTE
C 172.16.1.0/24 is directly connected, FastEthernet0/0 // CHILD/LEVEL 2 ROUTE
D 172.16.2.0/24 [90/2172416] via 172.16.3.2, 00:11:03, Serial0/0/0 // CHILD/LEVEL 2 ROUTE
C 172.16.3.0/30 is directly connected, Serial0/0/0 // CHILD/LEVEL 2 ROUTE
D 192.168.1.0/24 [90/2172416] via 192.168.10.6, 00:05:07, Serial0/0/1 //
R3#show ip route // R3 IS GETTING 172.16.0.0/16 SUMMARIZED ROUTE FROM BOTH R1 AND R2; IT'S INCLUDED IN THE ROUTING TABLE SINCE THE TWO ARE EQUAL COST ROUTES (2172416)
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:14:46, Null0
C 192.168.10.4/30 is directly connected, Serial0/0/0
C 192.168.10.8/30 is directly connected, Serial0/0/1
D 172.16.0.0/16 [90/2172416] via 192.168.10.9, 00:13:59, Serial0/0/1
[90/2172416] via 192.168.10.5, 00:13:59, Serial0/0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R1#show interface serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.3.1/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec, // EIGRP METRIC: BANDWIDTH, DELAY, RELIABILITY AND LOAD (MTU NOT INCLUDED)
reliability 255/255, txload 1/255, rxload 1/255 //
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:03, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
843 packets input, 56982 bytes, 0 no buffer
Received 534 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
896 packets output, 59524 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1(config)#interface serial0/0/0
R1(config-if)#bandwidth ?
<1-10000000> Bandwidth in kilobits
inherit Specify that bandwidth is inherited
receive Specify receive-side bandwidth
R1(config-if)#bandwidth 64 // SERIAL LINK DEFAULTS TO 1544 Kbps; CHANGE BANDWIDTH TO CALCULATE CORRECT EIGRP METRIC; IT ONLY MODIFIES BANDWITH METRIC USED BY ROUTING PROTOCOL AND NOT THE PHYSICAL BANDWIDTH
R2(config)#interface serial0/0/0
R2(config-if)#bandwidth 64
R2(config-if)#interface serial0/0/1
R2(config-if)#bandwidth 1024
R3(config)#interface serial0/0/1
R3(config-if)#bandwidth 1024
R1#show interface serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.3.1/30
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:00, output 00:00:02, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
962 packets input, 64848 bytes, 0 no buffer
Received 573 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1012 packets output, 66854 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#show interface serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.3.2/30
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1005 packets input, 66486 bytes, 0 no buffer
Received 567 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
953 packets output, 64092 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R3#show interface serial0/0/1
Serial0/0/1 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 192.168.10.10/30
MTU 1500 bytes, BW 1024 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:03, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 768 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
840 packets input, 56267 bytes, 0 no buffer
Received 531 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
822 packets output, 55556 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:03:07, Null0
D 192.168.10.4/30 [90/3523840] via 192.168.10.10, 00:03:07, Serial0/0/1
C 192.168.10.8/30 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.16.0.0/16 is a summary, 00:02:45, Null0
D 172.16.1.0/24 [90/40514560] via 172.16.3.1, 00:03:12, Serial0/0/0 // SUCCESSOR ROUTE GOING TO PC1; CURRENTLY FORWARDING PACKET; FEASIBLE DISTANCE (FD) IS 40514560
C 172.16.2.0/24 is directly connected, FastEthernet0/0
C 172.16.3.0/30 is directly connected, Serial0/0/0
10.0.0.0/30 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Loopback1
D 192.168.1.0/24 [90/3014400] via 192.168.10.10, 00:03:07, Serial0/0/1
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:06:13, Null0
C 192.168.10.4/30 is directly connected, Serial0/0/1
D 192.168.10.8/30 [90/3523840] via 192.168.10.6, 00:06:01, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.16.0.0/16 is a summary, 00:34:15, Null0
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/40514560] via 172.16.3.2, 00:07:30, Serial0/0/0
C 172.16.3.0/30 is directly connected, Serial0/0/0
D 192.168.1.0/24 [90/2172416] via 192.168.10.6, 00:07:30, Serial0/0/1 // REPORTED DISTANCE (RD) IS 2172416 FEASIBILITY CONDITION (FC) IS MET WHEN A NEIGHBOR'S RD TO A NETWORK (192.168.1.0/24) IS LESS THAN THE LOCAL ROUTER'S FD TO THE SAME NETWORK
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:03:07, Null0
D 192.168.10.4/30 [90/3523840] via 192.168.10.10, 00:03:07, Serial0/0/1
C 192.168.10.8/30 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.16.0.0/16 is a summary, 00:02:45, Null0
D 172.16.1.0/24 [90/40514560] via 172.16.3.1, 00:03:12, Serial0/0/0
C 172.16.2.0/24 is directly connected, FastEthernet0/0
C 172.16.3.0/30 is directly connected, Serial0/0/0
10.0.0.0/30 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Loopback1
D 192.168.1.0/24 [90/3014400] via 192.168.10.10, 00:03:07, Serial0/0/1 // FD IS 3014400
2172416 < 3014400; THEREFORE R2 WILL CONSIDER R1 TO BE FEASIBLE SUCCESSOR (FS) TO 192.168.1.0/24
R2#show ip eigrp ?
<1-65535> Autonomous System
accounting IP-EIGRP Accounting
interfaces IP-EIGRP interfaces
neighbors IP-EIGRP neighbors
topology IP-EIGRP Topology Table
traffic IP-EIGRP Traffic Statistics
vrf Select a VPN Routing/Forwarding instance
R2#show ip eigrp topology
IP-EIGRP Topology Table for AS(1)/ID(10.1.1.1)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.10.0/24, 1 successors, FD is 2169856
via Summary (3011840/0), Null0
P 192.168.10.4/30, 1 successors, FD is 2681856
via 192.168.10.10 (3523840/2169856), Serial0/0/1
P 192.168.1.0/24, 1 successors, FD is 2172416
via 192.168.10.10 (3014400/28160), Serial0/0/1
P 192.168.10.8/30, 1 successors, FD is 3011840
via Connected, Serial0/0/1
P 172.16.0.0/16, 1 successors, FD is 28160
via Summary (28160/0), Null0
P 172.16.1.0/24, 1 successors, FD is 2172416
via 172.16.3.1 (40514560/28160), Serial0/0/0
P 172.16.2.0/24, 1 successors, FD is 28160
via Connected, FastEthernet0/0
P 172.16.3.0/30, 1 successors, FD is 40512000
via Connected, Serial0/0/0
R2#show ip eigrp topology 192.168.1.0
IP-EIGRP (AS 1): Topology entry for 192.168.1.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2172416
Routing Descriptor Blocks:
192.168.10.10 (Serial0/0/1), from 192.168.10.10, Send flag is 0x0
Composite metric is (3014400/28160), Route is Internal
Vector metric:
Minimum bandwidth is 1024 Kbit
Total delay is 20100 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1
172.16.3.1 (Serial0/0/0), from 172.16.3.1, Send flag is 0x0
Composite metric is (41026560/2172416), Route is Internal
Vector metric:
Minimum bandwidth is 64 Kbit
Total delay is 40100 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
R3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/24 is variably subnetted, 3 subnets, 2 masks
D 192.168.10.0/24 is a summary, 00:37:51, Null0
C 192.168.10.4/30 is directly connected, Serial0/0/0
C 192.168.10.8/30 is directly connected, Serial0/0/1
D 172.16.0.0/16 [90/2172416] via 192.168.10.5, 00:16:48, Serial0/0/0 // R1 IS THE SUCCESSOR FOR 172.16.0.0/16
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R3#show ip eigrp topology
IP-EIGRP Topology Table for AS(1)/ID(192.168.10.10)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.10.0/24, 1 successors, FD is 2169856
via Summary (2169856/0), Null0
P 192.168.10.4/30, 1 successors, FD is 2169856
via Connected, Serial0/0/0
P 192.168.1.0/24, 1 successors, FD is 28160
via Connected, FastEthernet0/0
P 192.168.10.8/30, 1 successors, FD is 3011840
via Connected, Serial0/0/1
P 172.16.0.0/16, 1 successors, FD is 2172416
via 192.168.10.5 (2172416/28160), Serial0/0/0
via 192.168.10.9 (3014400/28160), Serial0/0/1
R2 RD (3014400) > R1 FD 2172416
R1(config)#router eigrp 1
R1(config-router)#no auto-summary // DISABLES AUTO SUMMARIZATION
R1(config-router)#
*Jan 3 14:08:15.379: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.3.2 (Serial0/0/0) is resync: summary configured
*Jan 3 14:08:15.383: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.6 (Serial0/0/1) is resync: summary configured
R2(config)#router eigrp 1
R2(config-router)#no auto-summary
R2(config-router)#
*Jan 3 13:59:56.223: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 172.16.3.1 (Serial0/0/0) is resync: summary configured
*Jan 3 13:59:56.223: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.10 (Serial0/0/1) is resync: summary configured
R3(config)#router eigrp 1
R3(config-router)#no auto-summary
R3(config-router)#
*Jan 3 14:07:44.391: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.5 (Serial0/0/0) is resync: summary configured
*Jan 3 14:07:44.391: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.9 (Serial0/0/1) is resync: summary configured
R3#show ip route // INDIVIDUAL ROUTES ARE NOW PRESENT AND SUMMARY NULL ROUTE IS GONE
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/0
C 192.168.10.8 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
D 172.16.1.0/24 [90/2172416] via 192.168.10.5, 00:01:48, Serial0/0/0
D 172.16.2.0/24 [90/3014400] via 192.168.10.9, 00:01:09, Serial0/0/1
D 172.16.3.0/30 [90/41024000] via 192.168.10.9, 00:01:09, Serial0/0/1
[90/41024000] via 192.168.10.5, 00:01:09, Serial0/0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R3(config)#interface loopback1 // ADD NEW SUBNETS ON R3
R3(config-if)#
*Jan 3 14:09:54.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
R3(config-if)#ip address 192.168.2.1 255.255.255.0
R3(config-if)#interface loopback2
R3(config-if)#
*Jan 3 14:10:09.723: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback2, changed state to up
R3(config-if)#ip address 192.168.3.1 255.255.255.0
R3(config-if)#router eigrp 1
R3(config-router)#network 192.168.2.0
R3(config-router)#network 192.168.3.0
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/1
D 192.168.10.8 [90/3523840] via 192.168.10.6, 00:04:03, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/3526400] via 192.168.10.6, 00:04:03, Serial0/0/1
C 172.16.3.0/30 is directly connected, Serial0/0/0
D 192.168.1.0/24 [90/2172416] via 192.168.10.6, 00:28:33, Serial0/0/1
D 192.168.2.0/24 [90/2297856] via 192.168.10.6, 00:00:52, Serial0/0/1
D 192.168.3.0/24 [90/2297856] via 192.168.10.6, 00:00:50, Serial0/0/1
R3(config)#interface serial0/0/0 // APPLY MANUAL ROUTE SUMMARIZATION ON OUTBOUND INTERFACES
R3(config-if)#ip summary-address ?
eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)
rip Routing Information Protocol (RIP)
R3(config-if)#ip summary-address eigrp ?
<1-65535> Autonomous system number
R3(config-if)#ip summary-address eigrp 1 ?
A.B.C.D IP address
R3(config-if)#ip summary-address eigrp 1 192.168.0.0 ?
A.B.C.D IP network mask
R3(config-if)#ip summary-address eigrp 1 192.168.0.0 255.255.252.0
R3(config-if)#
*Jan 3 14:12:49.307: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.5 (Serial0/0/0) is resync: summary configured
R3(config-if)#interface serial0/0/1
R3(config-if)#ip summary-address eigrp 1 192.168.0.0 255.255.252.0
R3(config-if)#
*Jan 3 14:12:56.303: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.10.9 (Serial0/0/1) is resync: summary configured
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/1
D 192.168.10.8 [90/3523840] via 192.168.10.6, 00:06:36, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/3526400] via 192.168.10.6, 00:06:36, Serial0/0/1
C 172.16.3.0/30 is directly connected, Serial0/0/0
D 192.168.0.0/22 [90/2172416] via 192.168.10.6, 00:01:02, Serial0/0/1 // EIGRP SUMMARY ROUTE FROM R3
R2(config)#ip route 0.0.0.0 0.0.0.0 loopback1 // CONFIGURE STATIC DEFAULT ROUTE ON R2 TO EXIT TO ISP
R2(config)#router eigrp 1
R2(config-router)#?
Router configuration commands:
address-family Enter Address Family command mode
auto-summary Enable automatic network number summarization
bfd BFD configuration commands
default Set a command to its defaults
default-information Control distribution of default information
default-metric Set metric of redistributed routes
distance Define an administrative distance
distribute-list Filter networks in routing updates
eigrp EIGRP specific commands
exit Exit from routing protocol configuration mode
help Description of the interactive help system
maximum-paths Forward packets over multiple paths
metric Modify EIGRP routing metrics and parameters
neighbor Specify a neighbor router
network Enable routing on an IP network
no Negate a command or set its defaults
offset-list Add or subtract offset from RIP metrics
passive-interface Suppress routing updates on an interface
redistribute Redistribute information from another routing protocol
timers Adjust routing timers
traffic-share How to compute traffic share over alternate paths
variance Control load balancing variance
R2(config-router)#redistribute ?
bgp Border Gateway Protocol (BGP)
connected Connected
eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)
isis ISO IS-IS
iso-igrp IGRP for OSI networks
metric Metric for redistributed routes
mobile Mobile routes
odr On Demand stub Routes
ospf Open Shortest Path First (OSPF)
rip Routing Information Protocol (RIP)
route-map Route map reference
static Static routes
<cr>
R2(config-router)#redistribute static // INCLUDE STATIC ROUTE IN EIGRP UPDATES
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 192.168.10.6 to network 0.0.0.0
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/1
D 192.168.10.8 [90/3523840] via 192.168.10.6, 00:09:56, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, FastEthernet0/0
D 172.16.2.0/24 [90/3526400] via 192.168.10.6, 00:09:56, Serial0/0/1
C 172.16.3.0/30 is directly connected, Serial0/0/0
D*EX 0.0.0.0/0 [170/3651840] via 192.168.10.6, 00:01:33, Serial0/0/1
D 192.168.0.0/22 [90/2172416] via 192.168.10.6, 00:04:22, Serial0/0/1
R3#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 192.168.10.9 to network 0.0.0.0
192.168.10.0/30 is subnetted, 2 subnets
C 192.168.10.4 is directly connected, Serial0/0/0
C 192.168.10.8 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
D 172.16.1.0/24 [90/2172416] via 192.168.10.5, 00:11:22, Serial0/0/0
D 172.16.2.0/24 [90/3014400] via 192.168.10.9, 00:10:44, Serial0/0/1
D 172.16.3.0/30 [90/41024000] via 192.168.10.9, 00:10:44, Serial0/0/1
[90/41024000] via 192.168.10.5, 00:10:44, Serial0/0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
C 192.168.2.0/24 is directly connected, Loopback1
C 192.168.3.0/24 is directly connected, Loopback2
D*EX 0.0.0.0/0 [170/3139840] via 192.168.10.9, 00:02:21, Serial0/0/1
D 192.168.0.0/22 is a summary, 00:05:09, Null0
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