My Network Lab: Configuring EIGRP for IPv6

EIGRP for IPv6 follows the same basic configuration style as for RIPng. The specific EIGRP for IPv6 configuration steps are as follows:

Step 1. Enable IPv6 routing with the ipv6 unicast-routing global command.

Step 2. Enable EIGRP using the ipv6 router eigrp <1 – 65535> global configuration command.

Step 3. Enable IPv6 on the interface, typically with one of these two methods:
* Configure an IPv6 unicast address on each interface, using the ipv6 address address/prefix-length [ eui-64 ] interface command.

* Configure the ipv6 enable command, which enables IPv6 and causes the router to derive its link-local address.

Step 4. Enable EIGRP on the interface with the ipv6 eigrp <ASN> interface subcommand (where the ASN matches the ipv6 router eigrp <ASN> global configuration command).

Step 5. Enable EIGRP for IPv6 with a no shutdown command while in EIGRP configuration mode, if EIGRP is currently disabled.

Step 6. If no EIGRP router ID has been automatically chosen, because of not having at least one working interface with an IPv4 address, configure an EIGRP router ID with the router-id rid command in EIGRP configuration mode.

R1#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#interface loop 0

R1(config-if)#

*Jun 25 10:01:28.363: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up

R1(config-if)#ipv6 address 2001:db8:cafe:1::1/64

R1(config-if)#

R1(config-if)#interface serial 2/0

R1(config-if)#ipv6 address 2001:db8:cafe:2::1/64

R1(config-if)#no shut

R1(config-if)#

*Jun 25 10:02:11.523: %LINK-3-UPDOWN: Interface Serial2/0, changed state to up

R1(config-if)#

*Jun 25 10:02:12.535: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up

R1(config-if)#end

R1#

R2#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R2(config)#interface loop 0

R2(config-if)#

*Jun 25 10:02:04.719: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up

R2(config-if)#ipv6 address 2001:db8:cafe:3::1/64

R2(config-if)#

R2(config-if)#interface serial 2/0

R2(config-if)#ipv6 address 2001:db8:cafe:2::2/64

R2(config-if)#no shut

R2(config-if)#

*Jun 25 10:02:45.631: %LINK-3-UPDOWN: Interface Serial2/0, changed state to up

R2(config-if)#

*Jun 25 10:02:46.643: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up

R2(config-if)#do ping 2001:db8:cafe:2::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:CAFE:2::1, timeout is 2 seconds:

.!!!!

Success rate is 80 percent (4/5), round-trip min/avg/max = 28/31/36 ms

R2(config-if)#

R2(config-if)#interface serial 2/1

R2(config-if)#ipv6 address 2001:db8:cafe:4::1/64

R2(config-if)#no shut

R2(config-if)#

*Jun 25 10:03:31.039: %LINK-3-UPDOWN: Interface Serial2/1, changed state to up

R2(config-if)#

*Jun 25 10:03:32.051: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/1, changed state to up

R2(config-if)#end

R2#

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R3(config)#interface loop 0

R3(config-if)#

*Jun 25 10:03:05.243: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up

R3(config-if)#ipv6 address 2001:db8:cafe:5::1/64

R3(config-if)#

R3(config-if)#interface loop 1

R3(config-if)#

*Jun 25 10:03:36.163: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up

R3(config-if)#ipv6 address 2001:db8:abcd:1::1/64

R3(config-if)#

R3(config-if)#interface loop 2

R3(config-if)#

*Jun 25 10:04:01.839: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback2, changed state to up

R3(config-if)#ipv6 address 2001:db8:abcd:2::1/64

R3(config-if)#

R3(config-if)#interface loop 3

R3(config-if)#

*Jun 25 10:04:14.275: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback3, changed state to up

R3(config-if)#ipv6 address 2001:db8:abcd:3::1/64

R3(config-if)#

R3(config-if)#interface loop 4

R3(config-if)#

*Jun 25 10:04:32.035: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback4, changed state to up

R3(config-if)#ipv6 address 2001:db8:abcd:4::1/64

R3(config-if)#

R3(config-if)#interface loop 5

R3(config-if)#

*Jun 25 10:04:43.279: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback5, changed state to up

R3(config-if)#ipv6 address 2001:db8:abcd:5::1/64

R3(config-if)#

R3(config-if)#interface serial 2/1

R3(config-if)#ipv6 address 2001:db8:cafe:4::2/64

R3(config-if)#no shut

R3(config-if)#

*Jun 25 10:05:17.031: %LINK-3-UPDOWN: Interface Serial2/1, changed state to up

R3(config-if)#

*Jun 25 10:05:18.043: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/1, changed state to up

R3(config-if)#do ping 2001:db8:cafe:4::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:CAFE:4::1, timeout is 2 seconds:

.!!!!

Success rate is 80 percent (4/5), round-trip min/avg/max = 32/35/40 ms

R3(config-if)#

R3(config-if)#interface serial 2/2

R3(config-if)#ipv6 address 2001:db8:feed:77::2/64

R3(config-if)#no shut

R3(config-if)#

*Jun 25 10:06:14.235: %LINK-3-UPDOWN: Interface Serial2/2, changed state to up

R3(config-if)#

*Jun 25 10:06:15.247: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/2, changed state to up

R3(config-if)#end

R3#

R4#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R4(config)#interface serial 2/2

R4(config-if)#ipv6 address 2001:db8:feed:77::1/64

R4(config-if)#no shut

R4(config-if)#

*Jun 25 10:05:22.023: %LINK-3-UPDOWN: Interface Serial2/2, changed state to up

R4(config-if)#

*Jun 25 10:05:23.035: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/2, changed state to up

R4(config-if)#do ping 2001:db8:feed:77::2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:FEED:77::2, timeout is 2 seconds:

.!!!!

Success rate is 80 percent (4/5), round-trip min/avg/max = 28/31/32 ms

R4(config-if)#end

R4(config)#ipv6 route 2001:db8:cafe::/48 2001:db8:feed:77::2

R4(config)#ipv6 route 2001:db8:abcd::/48 2001:db8:feed:77::2

R4(config)#end

R4#

*Jun 25 10:07:11.007: %SYS-5-CONFIG_I: Configured from console by console

R4#

R4#ping 2001:db8:abcd:1::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:1::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/17/24 ms

R1#show ipv6 interface brief

FastEthernet0/0 [administratively down/down]

unassigned

FastEthernet1/0 [administratively down/down]

unassigned

FastEthernet1/1 [administratively down/down]

unassigned

Serial2/0 [up/up]

FE80::C801:15FF:FEB0:0

2001:DB8:CAFE:2::1

Serial2/1 [administratively down/down]

unassigned

Serial2/2 [administratively down/down]

unassigned

Serial2/3 [administratively down/down]

unassigned

Loopback0 [up/up]

FE80::C801:15FF:FEB0:0

2001:DB8:CAFE:1::1

R2#show ipv6 interface brief

FastEthernet0/0 [administratively down/down]

unassigned

FastEthernet1/0 [administratively down/down]

unassigned

FastEthernet1/1 [administratively down/down]

unassigned

Serial2/0 [up/up]

FE80::C802:16FF:FECC:0

2001:DB8:CAFE:2::2

Serial2/1 [up/up]

FE80::C802:16FF:FECC:0

2001:DB8:CAFE:4::1

Serial2/2 [administratively down/down]

unassigned

Serial2/3 [administratively down/down]

unassigned

Loopback0 [up/up]

FE80::C802:16FF:FECC:0

2001:DB8:CAFE:3::1

R3#show ipv6 interface brief

FastEthernet0/0 [administratively down/down]

unassigned

FastEthernet1/0 [administratively down/down]

unassigned

FastEthernet1/1 [administratively down/down]

unassigned

Serial2/0 [administratively down/down]

unassigned

Serial2/1 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:CAFE:4::2

Serial2/2 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:FEED:77::2

Serial2/3 [administratively down/down]

unassigned

Loopback0 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:CAFE:5::1

Loopback1 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:ABCD:1::1

Loopback2 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:ABCD:2::1

Loopback3 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:ABCD:3::1

Loopback4 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:ABCD:4::1

Loopback5 [up/up]

FE80::C803:1BFF:FE10:0

2001:DB8:ABCD:5::1

R4#show ipv6 interface brief

FastEthernet0/0 [administratively down/down]

unassigned

FastEthernet1/0 [administratively down/down]

unassigned

FastEthernet1/1 [administratively down/down]

unassigned

Serial2/0 [administratively down/down]

unassigned

Serial2/1 [administratively down/down]

unassigned

Serial2/2 [up/up]

FE80::C804:10FF:FE70:0

2001:DB8:FEED:77::1

Serial2/3 [administratively down/down]

unassigned

R1#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#ipv6 unicast-routing

R1(config)#ipv6 router ?

eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)

ospf Open Shortest Path First (OSPF)

rip IPv6 Routing Information Protocol (RIPv6)

R1(config)#ipv6 router eigrp ?

<1-65535> Autonomous system number

R1(config)#ipv6 router eigrp 1

R1(config-rtr)#?

default Set a command to its defaults

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 IPv6 routing protocol configuration mode

maximum-paths Forward packets over multiple paths

metric Modify metrics and parameters for advertisement

neighbor Specify a neighbor router

no Negate a command or set its defaults

passive-interface Suppress routing updates on an interface

redistribute Redistribute IPv6 prefixes from another routing protocol

shutdown Shutdown topology

summary-metric Specify summary to apply metric/filtering

timers Adjust topology specific timers

variance Control load balancing variance

R1(config-rtr)#eigrp ?

event-log-size Set EIGRP maximum event log entries

log-neighbor-changes Enable/Disable EIGRP neighbor logging

log-neighbor-warnings Enable/Disable EIGRP neighbor warnings

router-id router id for this EIGRP process

stub Set address-family in stubbed mode

R1(config-rtr)#eigrp router-id ?

A.B.C.D EIGRP Router-ID in IP address format

R1(config-rtr)#eigrp router-id 1.1.1.1 // EIGRP FOR IPV6 REQUIRES A 32-BIT IPv4 ADDRESS ROUTER-ID

R1(config-rtr)#no shutdown // EIGRP PROCESS IS SHUTDOWN BY DEFAULT PRIOR TO IOS 15.2

R2#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R2(config)#ipv6 unicast-routing

R2(config)#ipv6 router eigrp 1

R2(config-rtr)#eigrp router-id 2.2.2.2

R2(config-rtr)#no shutdown

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R3(config)#ipv6 unicast-routing

R3(config)#ipv6 router eigrp 1

R3(config-rtr)#eigrp router-id 3.3.3.3

R3(config-rtr)#do show run | sec eigrp

ipv6 router eigrp 1

eigrp router-id 3.3.3.3

R3(config-rtr)#do show version // NO NEED FOR no shutdown COMMAND SINCE USING IOS 15.2

Cisco IOS Software, 7200 Software (C7200-ADVIPSERVICESK9-M), Version 15.2(4)M11, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Compiled Sun 16-Oct-16 07:53 by prod_rel_team

ROM: ROMMON Emulation Microcode

BOOTLDR: 7200 Software (C7200-ADVIPSERVICESK9-M), Version 15.2(4)M11, RELEASE SOFTWARE (fc2)

R3 uptime is 15 minutes

System returned to ROM by unknown reload cause - suspect boot_data[BOOT_COUNT] 0x0, BOOT_COUNT 0, BOOTDATA 19

System image file is "tftp://255.255.255.255/unknown"

Last reload reason: unknown reload cause - suspect boot_data[BOOT_COUNT] 0x0, BOOT_COUNT 0, BOOTDATA 19

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

Cisco 7206VXR (NPE400) processor (revision A) with 491520K/32768K bytes of memory.

Processor board ID 4279256517

R7000 CPU at 150MHz, Implementation 39, Rev 2.1, 256KB L2 Cache

6 slot VXR midplane, Version 2.1

Last reset from power-on

PCI bus mb0_mb1 (Slots 0, 1, 3 and 5) has a capacity of 600 bandwidth points.

Current configuration on bus mb0_mb1 has a total of 600 bandwidth points.

This configuration is within the PCI bus capacity and is supported.

PCI bus mb2 (Slots 2, 4, 6) has a capacity of 600 bandwidth points.

Current configuration on bus mb2 has a total of 0 bandwidth points

This configuration is within the PCI bus capacity and is supported.

Please refer to the following document "Cisco 7200 Series Port Adaptor

Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>

for c7200 bandwidth points oversubscription and usage guidelines.

3 FastEthernet interfaces

4 Serial interfaces

509K bytes of NVRAM.

8192K bytes of Flash internal SIMM (Sector size 256K).

Configuration register is 0x2102

R1#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#interface loop 0

R1(config-if)#ipv6 eigrp ?

<1-65535> AS number

R1(config-if)#ipv6 eigrp 1 // EIGRP FOR IPv6 DOES NOT USE network COMMAND

R1(config-if)#

R1(config-if)#interface serial 2/0

R1(config-if)#ipv6 eigrp 1

R1(config-if)#

*Jun 25 10:20:59.355: %DUAL-5-NBRCHANGE: EIGRP-IPv6 1: Neighbor FE80::C802:16FF:FECC:0 (Serial2/0) is up: new adjacency

R2#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R2(config)#interface loop 0

R2(config-if)#ipv6 eigrp 1

R2(config-if)#

R2(config-if)#interface serial 2/0

R2(config-if)#ipv6 eigrp 1

R2(config-if)#

*Jun 25 10:19:09.091: %DUAL-5-NBRCHANGE: EIGRP-IPv6 1: Neighbor FE80::C801:15FF:FEB0:0 (Serial2/0) is up: new adjacency

R2(config-if)#

R2(config-if)#interface serial 2/1

R2(config-if)#ipv6 eigrp 1

R2(config-if)#

*Jun 25 10:21:00.799: %DUAL-5-NBRCHANGE: EIGRP-IPv6 1: Neighbor FE80::C803:1BFF:FE10:0 (Serial2/1) is up: new adjacency

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R3(config)#interface loop 0

R3(config-if)#ipv6 eigrp 1

R3(config-if)#

R3(config-if)#interface serial 2/1

R3(config-if)#ipv6 eigrp 1

R3(config-if)#

*Jun 25 10:20:10.355: %DUAL-5-NBRCHANGE: EIGRP-IPv6 1: Neighbor FE80::C802:16FF:FECC:0 (Serial2/1) is up: new adjacency

R3(config-if)#

R3(config-if)#interface loop 1

R3(config-if)#ipv6 eigrp 1

R3(config-if)#

R3(config-if)#interface loop 2

R3(config-if)#ipv6 eigrp 1

R3(config-if)#

R3(config-if)#interface loop 3

R3(config-if)#ipv6 eigrp 1

R3(config-if)#

R3(config-if)#interface loop 4

R3(config-if)#ipv6 eigrp 1

R3(config-if)#

R3(config-if)#interface loop 5

R3(config-if)#ipv6 eigrp 1

R2#show ipv6 eigrp ?

<1-65535> Autonomous System

events Events logged

interfaces interfaces

neighbors Neighbors

sia-statistics SIA Statistics

timers Timers

topology Select Topology

traffic Traffic Statistics

R2#show ipv6 eigrp neighbors // USES IPv6 LINK-LOCAL ADDRESS TO FORM EIGRP NEIGHBOR ADJACENCY

EIGRP-IPv6 Neighbors for AS(1)

H Address Interface Hold Uptime SRTT RTO Q Seq

(sec) (ms) Cnt Num

1 Link-local address: Se2/1 11 00:03:17 31 186 0 8

FE80::C803:1BFF:FE10:0

0 Link-local address: Se2/0 14 00:05:08 26 156 0 10

FE80::C801:15FF:FEB0:0

R1#show ipv6 route eigrp

IPv6 Routing Table - default - 13 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

IS - ISIS summary, D - EIGRP, EX - EIGRP external, ND - ND Default

NDp - ND Prefix, DCE - Destination, NDr - Redirect, O - OSPF Intra

OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1

ON2 - OSPF NSSA ext 2, l - LISP

D 2001:DB8:ABCD:1::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:2::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:3::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:4::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:5::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:3::/64 [90/2297856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:4::/64 [90/2681856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:5::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

R1#

R1#ping 2001:db8:cafe:5::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:CAFE:5::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/26/36 ms

R1#

R1#ping 2001:db8:abcd:1::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:1::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/20/32 ms

R1#show ipv6 eigrp topology

EIGRP-IPv6 Topology Table for AS(1)/ID(1.1.1.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

r - reply Status, s - sia Status

P 2001:DB8:CAFE:5::/64, 1 successors, FD is 2809856

via FE80::C802:16FF:FECC:0 (2809856/2297856), Serial2/0

P 2001:DB8:ABCD:1::/64, 1 successors, FD is 2809856

via FE80::C802:16FF:FECC:0 (2809856/2297856), Serial2/0

P 2001:DB8:ABCD:2::/64, 1 successors, FD is 2809856

via FE80::C802:16FF:FECC:0 (2809856/2297856), Serial2/0

P 2001:DB8:CAFE:3::/64, 1 successors, FD is 2297856

via FE80::C802:16FF:FECC:0 (2297856/128256), Serial2/0

P 2001:DB8:CAFE:4::/64, 1 successors, FD is 2681856

via FE80::C802:16FF:FECC:0 (2681856/2169856), Serial2/0

P 2001:DB8:CAFE:2::/64, 1 successors, FD is 2169856

via Connected, Serial2/0

P 2001:DB8:ABCD:3::/64, 1 successors, FD is 2809856

via FE80::C802:16FF:FECC:0 (2809856/2297856), Serial2/0

P 2001:DB8:ABCD:5::/64, 1 successors, FD is 2809856

via FE80::C802:16FF:FECC:0 (2809856/2297856), Serial2/0

P 2001:DB8:ABCD:4::/64, 1 successors, FD is 2809856

via FE80::C802:16FF:FECC:0 (2809856/2297856), Serial2/0

P 2001:DB8:CAFE:1::/64, 1 successors, FD is 128256

via Connected, Loopback0

R1#show ipv6 protocols

IPv6 Routing Protocol is "connected"

IPv6 Routing Protocol is "ND"

IPv6 Routing Protocol is "eigrp 1"

EIGRP-IPv6 Protocol for AS(1)

Metric weight K1=1, K2=0, K3=1, K4=0, K5=0

NSF-aware route hold timer is 240

Router-ID: 1.1.1.1

Topology : 0 (base)

Active Timer: 3 min

Distance: internal 90 external 170

Maximum path: 16

Maximum hopcount 100

Maximum metric variance 1

Interfaces:

Loopback0

Serial2/0

Redistribution:

None

R1#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#ipv6 router eigrp 1

R1(config-rtr)#passive-interface loop 0

R2#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R2(config)#ipv6 router eigrp 1

R2(config-rtr)#passive-interface loop 0

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R3(config)#ipv6 router eigrp 1

R3(config-rtr)#passive-interface loop 0

R1#show ipv6 protocols

IPv6 Routing Protocol is "connected"

IPv6 Routing Protocol is "ND"

IPv6 Routing Protocol is "eigrp 1"

EIGRP-IPv6 Protocol for AS(1)

Metric weight K1=1, K2=0, K3=1, K4=0, K5=0

NSF-aware route hold timer is 240

Router-ID: 1.1.1.1

Topology : 0 (base)

Active Timer: 3 min

Distance: internal 90 external 170

Maximum path: 16

Maximum hopcount 100

Maximum metric variance 1

Interfaces:

Serial2/0

Loopback0 (passive)

Redistribution:

None

R3#show ipv6 route eigrp

IPv6 Routing Table - default - 20 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

IS - ISIS summary, D - EIGRP, EX - EIGRP external, ND - ND Default

NDp - ND Prefix, DCE - Destination, NDr - Redirect, O - OSPF Intra

OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1

ON2 - OSPF NSSA ext 2, l - LISP

D 2001:DB8:CAFE:1::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/1

D 2001:DB8:CAFE:2::/64 [90/2681856]

via FE80::C802:16FF:FECC:0, Serial2/1

D 2001:DB8:CAFE:3::/64 [90/2297856]

via FE80::C802:16FF:FECC:0, Serial2/1

R3#

R3#ping 2001:db8:cafe:1::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:CAFE:1::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/36/48 ms

R1#show ipv6 route eigrp

IPv6 Routing Table - default - 13 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

IS - ISIS summary, D - EIGRP, EX - EIGRP external, ND - ND Default

NDp - ND Prefix, DCE - Destination, NDr - Redirect, O - OSPF Intra

OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1

ON2 - OSPF NSSA ext 2, l - LISP

D 2001:DB8:ABCD:1::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:2::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:3::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:4::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD:5::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:3::/64 [90/2297856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:4::/64 [90/2681856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:5::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R3(config)#interface serial 2/1

R3(config-if)#ipv6 summary-address ?

eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)

R3(config-if)#ipv6 summary-address eigrp ?

<1-65535> AS number

R3(config-if)#ipv6 summary-address eigrp 1 ?

X:X:X:X::X/<0-128> IPv6 prefix

R3(config-if)#ipv6 summary-address eigrp 1 2001:db8:abcd::/61

R3(config-if)#

*Jun 25 10:33:17.443: %DUAL-5-NBRCHANGE: EIGRP-IPv6 1: Neighbor FE80::C802:16FF:FECC:0 (Serial2/1) is resync: summary configured // CONFIGURING AN EIGRP SUMMARY ROUTE RESYNC NEIGHBOR ADJACENCY

R1#show ipv6 route eigrp

IPv6 Routing Table - default - 9 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

IS - ISIS summary, D - EIGRP, EX - EIGRP external, ND - ND Default

NDp - ND Prefix, DCE - Destination, NDr - Redirect, O - OSPF Intra

OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1

ON2 - OSPF NSSA ext 2, l - LISP

D 2001:DB8:ABCD::/61 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:3::/64 [90/2297856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:4::/64 [90/2681856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:5::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

R1#ping 2001:db8:abcd:1::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:1::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/33/48 ms

R1#

R1#ping 2001:db8:abcd:2::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:2::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/27/36 ms

R1#

R1#ping 2001:db8:abcd:3::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:3::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 8/22/32 ms

R1#

R1#ping 2001:db8:abcd:4::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:4::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/31/48 ms

R1#

R1#ping 2001:db8:abcd:5::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:ABCD:5::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/18/24 ms

R3#show ipv6 protocols // EIGRP COMMAND TO VERIFY ROUTE SUMMARIZATION

IPv6 Routing Protocol is "connected"

IPv6 Routing Protocol is "ND"

IPv6 Routing Protocol is "eigrp 1"

EIGRP-IPv6 Protocol for AS(1)

Metric weight K1=1, K2=0, K3=1, K4=0, K5=0

NSF-aware route hold timer is 240

Router-ID: 3.3.3.3

Topology : 0 (base)

Active Timer: 3 min

Distance: internal 90 external 170

Maximum path: 16

Maximum hopcount 100

Maximum metric variance 1

Interfaces:

Serial2/1

Loopback1

Loopback2

Loopback3

Loopback4

Loopback5

Loopback0 (passive)

Redistribution:

None

Address Summarization:

2001:DB8:ABCD::/61 for Se2/1

Summarizing 5 components with metric 128256

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z.

R3(config)#ipv6 route ::/0 2001:db8:feed:77::1

R3(config)#ipv6 router eigrp 1

R3(config-rtr)#redistribute ?

bgp Border Gateway Protocol (BGP)

connected Connected Routes

eigrp Enhanced Interior Gateway Routing Protocol (EIGRP)

isis ISO IS-IS

mobile Mobile

nemo Network Mobility (NEMO)

ospf Open Shortest Path First (OSPF)

rip IPv6 Routing Information Protocol (RIPv6)

static Static Routes

R3(config-rtr)#redistribute static

R1#show ipv6 route eigrp // REDISTRIBUTED EIGRP ROUTE SHOWS EX CODE FOR EXTERNAL WITH AD OF 170

IPv6 Routing Table - default - 10 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

IS - ISIS summary, D - EIGRP, EX - EIGRP external, ND - ND Default

NDp - ND Prefix, DCE - Destination, NDr - Redirect, O - OSPF Intra

OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1

ON2 - OSPF NSSA ext 2, l - LISP

EX ::/0 [170/2681856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:ABCD::/61 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:3::/64 [90/2297856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:4::/64 [90/2681856]

via FE80::C802:16FF:FECC:0, Serial2/0

D 2001:DB8:CAFE:5::/64 [90/2809856]

via FE80::C802:16FF:FECC:0, Serial2/0

R1#ping 2001:db8:feed:77::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2001:DB8:FEED:77::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/26/32 ms

R1#traceroute 2001:db8:feed:77::1

Type escape sequence to abort.

Tracing the route to 2001:DB8:FEED:77::1

1 2001:DB8:CAFE:2::2 16 msec 12 msec 16 msec

2 2001:DB8:CAFE:4::2 12 msec 16 msec 16 msec

3 2001:DB8:FEED:77::1 16 msec 28 msec 28 msec

R1#show run | i cef // IPv6 CEF IS AUTOMATICALLY ENABLED WHEN ISSUING ipv6 unicast-routing COMMAND

ip cef

ipv6 cef

R1#

R1#show ipv6 cef ?

Async Async interface

Auto-Template Auto-Template interface

BVI Bridge-Group Virtual Interface

CDMA-Ix CDMA Ix interface

CTunnel CTunnel interface

Dialer Dialer interface

FastEthernet FastEthernet IEEE 802.3

GMPLS MPLS interface

Group-Async Async Group interface

LISP Locator/ID Separation Protocol Virtual Interface

LongReachEthernet Long-Reach Ethernet interface

Loopback Loopback interface

MFR Multilink Frame Relay bundle interface

Multilink Multilink-group interface

Null Null interface

Port-channel Ethernet Channel of interfaces

Serial Serial

Tunnel Tunnel interface

Vif PGM Multicast Host interface

Virtual-PPP Virtual PPP interface

Virtual-Template Virtual Template interface

Virtual-TokenRing Virtual TokenRing

X:X:X:X::X address of entry to show

X:X:X:X::X/<0-128> prefix of entries to show

adjacency Display all prefixes resolving through adjacency

checksum Display FIB entry checksums

detail Display full information

epoch CEF table epoch summary

events Show CEF table events

exact-route Display exact route for a session

internal Display internal data structures

neighbor neighbor

non-recursive Display non-recursive routes only

platform Display platform specific data structures

prefix-statistics Display non-zero prefix statistics

summary CEF table summary

switching Show IPv6 CEF switching information

traffic Display traffic statistics

tree Display forwarding database state

unresolved Display unresolved routes only

vmi Virtual Multipoint Interface

vrf Apply to particular VRF

with Filter on prefix properties

| Output modifiers

<cr>

R1#show ipv6 cef summary

IPv6 CEF is enabled and running centrally.

VRF Default

12 prefixes (12/0 fwd/non-fwd)

Table id 0x1E000000

Database epoch: 0 (12 entries at this epoch)

My Network Lab

Friday, September 7, 2018

Configuring EIGRP for IPv6

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