Simple IPv6 network with EIGRP as IGP

From IPFlow Netflow Collector

IPv6 with EIGRP as IGP Example

This is a simple example of IPv6 network with EIGRP as IGP (using Dynamips and GNS3).

Author: Christophe Fillot - 08-Nov-2007


Table of contents

Topology

Image:IPv6_EIGRP_topo.png


IOS configurations

  • R0 (http://www.ipflow.utc.fr/configs/IPv6_EIGRP/R0.cfg)
  • R1 (http://www.ipflow.utc.fr/configs/IPv6_EIGRP/R1.cfg)
  • R2 (http://www.ipflow.utc.fr/configs/IPv6_EIGRP/R2.cfg)
  • R3 (http://www.ipflow.utc.fr/configs/IPv6_EIGRP/R3.cfg)


Dynamips/Dynagen/GNS3 configuration

You can use this configuration file (http://www.ipflow.utc.fr/configs/IPv6_EIGRP/ipv6_eigrp.net) directly with Dynagen or GNS3. Change the working directory and Cisco IOS image path to match your needs.


Configuration

Enable IPv6 routing globally:

ipv6 unicast-routing
ipv6 cef

Create the EIGRPv6 router process and enable it on the interfaces:

ipv6 router eigrp 100
 no shutdown
!
interface FastEthernet0/0
 ipv6 enable
 ipv6 eigrp 100
!

Warning: by default, the EIGRPv6 router process is shutdown, so you must enable it manually with "no shutdown".


Output of some commands

"R1" IPv6 routing table:

R1#sh ipv6 route
IPv6 Routing Table - 5 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       U - Per-user Static route, M - MIPv6
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       D - EIGRP, EX - EIGRP external
D   2007:1000::/128 [90/156160]
     via FE80::C804:16FF:FE13:0, FastEthernet0/0
LC  2007:1000::1/128 [0/0]
     via ::, Loopback0
D   2007:1000::2/128 [90/158720]
     via FE80::C804:16FF:FE13:0, FastEthernet0/0
     via FE80::C807:16FF:FE13:1C, FastEthernet1/0
D   2007:1000::3/128 [90/156160]
     via FE80::C807:16FF:FE13:1C, FastEthernet1/0
L   FF00::/8 [0/0]
     via ::, Null0


EIGRPv6 neighbors:

R1#sh ipv6 eigrp neighbors 
IPv6-EIGRP neighbors for process 100
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
1   Link-local address:     Fa1/0             14 00:18:06  832  4992  0  13
    FE80::C807:16FF:FE13:1C
0   Link-local address:     Fa0/0             13 00:19:19   22   200  0  15
    FE80::C804:16FF:FE13:0


EIGRPv6 topology:

R1#sh ipv6 eigrp topology 
IPv6-EIGRP Topology Table for AS(100)/ID(10.10.0.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - reply Status, s - sia Status 

P 2007:1000::3/128, 1 successors, FD is 156160
        via FE80::C807:16FF:FE13:1C (156160/128256), FastEthernet1/0
P 2007:1000::2/128, 2 successors, FD is 158720
        via FE80::C804:16FF:FE13:0 (158720/156160), FastEthernet0/0
        via FE80::C807:16FF:FE13:1C (158720/156160), FastEthernet1/0
P 2007:1000::1/128, 1 successors, FD is 128256
        via Connected, Loopback0
P 2007:1000::/128, 1 successors, FD is 156160
        via FE80::C804:16FF:FE13:0 (156160/128256), FastEthernet0/0