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IPv6 Training (Cisco): How to Enable IPv6 EIGRP Hot

Added: 08/24/2008, Hits: 9,885, Rating: 0, Comments: 0, Votes: 0
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Now, some of you maybe wondering, why did he write an article on how to enable EIGRPv6 on a Cisco Router, when I already know how to do that?

Well, to answer your question, enabling EIGRP on a router that is running on an IPv6 network, is slightly different from enabling EIGRP on a router that is running on an IPv4 network.

Meaning, a router that is running on an IPv6 network, had EIGRP (EIGRPv6) enabled per interface, instead of globally like a router running on an IPv4 network would. So, in other words, when enabling EIGRPv6 on a Cisco router, you don’t need to use the “network” command when the router is in Router Configuration Mode.

Instead you’ll need to perform the following steps:

1. Router>enable
2. Router#configure terminal
3. Router(config)#ipv6 unicast-routing
4. Router(config)#interface type number
5. Router(config-if)#ipv6 enable
6. Router(config-if)#ipv6 eigrp as-number
7. Router(config-if)#no shutdown
8. Router(config-if)#ipv6 router eigrp as-number
9. Router(config-router)#router-id {ip-address | ipv6-address}
10. Router(config-router)#no shutdown
11. Router(config-router)#exit
12. Router(config)#exit
13. Router#copy run start

Steps Explained:

Step #1

1. Router>enable

Puts router into Privileged EXEC mode.

Step #2

2. Router#configure terminal

Puts router into Global configuration mode.

Step #3

3. Router(config)#ipv6 unicast-routing

Configures the router to route IPv6 packets

Step #4

4. Router(config)#interface fastethernet 0/0

Specifies the fastethernet 0/0 interface on which EIGRPv6 is to be configured.

Step #5

5. Router(config-if)#ipv6 enable

Enables IPv6 processing on the fastethernet 0/0 interface.

Step #6

6. Router(config-if)#ipv6 eigrp 1

Enables the EIGRP for IPv6 process on the fastethernet 0/0 interface.

Step #7

7. Router(config-if)#no shutdown

Starts the EIGRP for IPv6 protocol (process) without changing any per-interface configuration.

Step #8

8. Router(config-if)#ipv6 router eigrp 1

Puts the router into router configuration mode and creates an EIGRP for IPv6 routing process.

Step #9

9. Router(config-router)#router-id {ip-address | ipv6-address}

Enables the router to use a fixed router ID. (Remember each router Id must be unique)

Step #10

10. Router(config-router)#no shutdown

Put the EIGRPv6 routing process in “no shutdown” mode in order to start the EIGRPv6 process.

Step #11

11. Router(config-router)#exit

Returns the router to Global configuration mode

Step #12

12. Router(config)#exit

Returns the router to Privileged EXEC mode.

Step #13

13. Router#copy run start

Saves the contents of the running-config to local Non -Volatile Random Access Memory (NVRAM).

I invite you to visit my website at where you’ll find the latest information regarding Cisco IPv6 Design and Implementation Techniques. And, also learn more about the new "Cisco IPv6 Video Accelerated Training Course" which contains over 3000 videos that will teach you all you need to know about Designing, Building, and Deploying Cisco IPv6 networks. (Guaranteed)

To your success,

Charles Ross
CCNP #CSCO10444244

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