Hi,
I assume you are expecting your loopbacks to appear in the routing
tables? If so, you have the same subnet defined on all loopback
interfaces: 2001::/64. As each of these are already defined locally,
they will take precedence. Look at "sh ipv6 ei top" and you can see
it. Try and change one to fx. /65 on R6, and you can see the subnet on
R2 and R5:
R6(config-if)#do sh run int loo6
Building configuration...
Current configuration : 83 bytes
!
interface Loopback6
no ip address
ipv6 address 2001::6/65
ipv6 eigrp 256
end
on R2:
R2(config-if)#do sh ipv6 ro ei
IPv6 Routing Table - 6 entries
...
D 2001::/65 [90/2297856]
via FE80::6, Serial0/0
And on R5:
R5(config-subif)#do sh ipv6 rou ei
IPv6 Routing Table - 6 entries
...
D 2001::/65 [90/2809856]
via FE80::2, Serial0/0.1
Kim
On Tue, Jul 19, 2011 at 5:37 AM, marc abel <[email protected]> wrote:
> I have a simple hub and spoke topology R5-R2-R6 with R2 as the hub. I
> am running eigrp and have neighbor relationships but no routes. What
> am I doing wrong? One thing I notice is that I can put in the eigrp
> router-id 5.5.5.5 or 6.6.6.6 on 5 and 6 but it never shows in the
> running config.
>
> Below are the relevant configs and some show commands from R2, it is
> the same from R5 and R6.
>
>
> R2 (HUB)
> _______________________
> ipv6 unicast-routing
> !
> ipv6 router eigrp 256
> eigrp router-id 2.2.2.2
> no shutdown
> !
> interface Serial0/1/0
> ip address 141.41.26.2 255.255.255.0
> encapsulation frame-relay
> ipv6 address FE80::2 link-local
> ipv6 address 2001:256::2/64
> ipv6 eigrp 256
> no ipv6 split-horizon eigrp 256
> frame-relay map ipv6 2001:256::6 206
> frame-relay map ipv6 2001:256::5 205
> frame-relay map ipv6 FE80::5 205 broadcast
> frame-relay map ipv6 FE80::6 206 broadcast
> frame-relay map ip 141.41.26.6 206 broadcast
> frame-relay map ip 141.41.26.5 205 broadcast
> frame-relay map ip 141.41.26.2 205
> no frame-relay inverse-arp
> !
> interface Loopback6
> no ip address
> ipv6 address 2001::2/64
> ipv6 eigrp 256
> end
>
>
>
> R5
> _______________________
>
> ipv6 router eigrp 256
> no shutdown
> !
> interface Serial0/1/0.1 multipoint
> ip address 141.41.26.5 255.255.255.0
> ipv6 address FE80::5 link-local
> ipv6 address 2001:256::5/64
> ipv6 eigrp 256
> frame-relay map ipv6 2001:256::6 502
> frame-relay map ipv6 2001:256::2 502
> frame-relay map ipv6 FE80::2 502 broadcast
> frame-relay map ip 141.41.26.2 502 broadcast
> frame-relay map ip 141.41.26.6 502
> frame-relay map ip 141.41.26.5 502
> no frame-relay inverse-arp
> !
> interface Loopback6
> no ip address
> ipv6 address 2001::5/64
> ipv6 eigrp 256
> end
>
>
>
> R6
> ________________________
> ipv6 router eigrp 256
> no shutdown
> !
> interface Serial0/1/0
> ip address 141.41.26.6 255.255.255.0
> encapsulation frame-relay
> ipv6 address FE80::6 link-local
> ipv6 address 2001:256::6/64
> ipv6 eigrp 256
> frame-relay map ipv6 2001:256::5 602
> frame-relay map ipv6 2001:256::2 602
> frame-relay map ipv6 FE80::2 602 broadcast
> frame-relay map ip 141.41.26.5 602
> frame-relay map ip 141.41.26.6 602
> no frame-relay inverse-arp
> !
> interface Loopback6
> no ip address
> ipv6 address 2001::6/64
> ipv6 eigrp 256
> end
>
>
> R2(config-if)#do ping 2001:256::5
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 2001:256::5, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 16/19/28 ms
> R2(config-if)#do ping 2001:256::6
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 2001:256::6, timeout is 2 seconds:
> !!!!!
>
> R2(config-if)#do show ipv6 eigrp nei
> IPv6-EIGRP neighbors for process 256
> H Address Interface Hold Uptime SRTT RTO Q Seq
> (sec) (ms) Cnt Num
> 1 Link-local address: Se0/1/0 173 00:46:57 23 200 0 4
> FE80::6
> 0 Link-local address: Se0/1/0 172 00:48:48 24 200 0 7
> FE80::5
>
>
> R2(config-if)#do show ipv6 ro
> IPv6 Routing Table - Default - 5 entries
> Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
> B - BGP, M - MIPv6, R - RIP, I1 - ISIS L1
> I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP
> EX - EIGRP external
> O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
> ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
> C 2001::/64 [0/0]
> via Loopback6, directly connected
> L 2001::2/128 [0/0]
> via Loopback6, receive
> C 2001:256::/64 [0/0]
> via Serial0/1/0, directly connected
> L 2001:256::2/128 [0/0]
> via Serial0/1/0, receive
> L FF00::/8 [0/0]
> via Null0, receive
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// CCIE #29189
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