From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Tue Aug 02 2005 - 15:48:37 GMT-3
Post the configuration of the spokes as well as the "show ipv6 route"
output from all of them.
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> gladston@br.ibm.com
> Sent: Tuesday, August 02, 2005 11:39 AM
> To: ccielab@groupstudy.com
> Subject: Failing Ping from Spoke to Spoke
>
> Have you seen this?
>
> Ping to ipv6 address from spoke to spoke fails. The hub receives the
> packet, but it seems it does not forward some of them. I left only
minimal
> commands, but the behavior does not change:
>
> R5 is the Hub; R2 and R3, spokes.
>
> Problem occurs if pinging from R2 to R3 or from R3 to R2.
>
> Rack2R2#pi 2001:148:5:3::1
> !.!.!
>
> Hub config:
>
> interface Serial0/0
> encapsulation frame-relay
> ipv6 address 2001:148:5:235::5/64
> ipv6 address FE80::5 link-local
> ipv6 rip RIPng enable
> frame-relay map ipv6 FE80::2 502 broadcast
> frame-relay map ipv6 FE80::3 503 broadcast
> frame-relay map ip 148.5.235.2 502 broadcast
> frame-relay map ip 148.5.235.3 503 broadcast
> frame-relay map ipv6 2001:148:5:235::2 502 broadcast
> frame-relay map ipv6 2001:148:5:235::3 503 broadcast
>
> To make sure the problem was related to Hub/spoke, I configured this:
> BB2---R5----R3
> It works fine:
> BB2#pi 2001:148:5:3::1
> !!!!!
>
> Ping to R2 link-local address does not fail:
> Rack2R3#pi FE80::2
> Output Interface: serial1/0.235
> !!!!!
>
> Any feedback appreciated.
>
>
> Debug ipv6 pack on R5 (hub)
> (the number in front of the output is to easily ready)
>
> 1. Aug 2 11:55:34: IPV6: source 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:34: dest 2001:148:5:2::1
> Aug 2 11:55:34: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 63, forward to ulp
>
> Aug 2 11:55:34: IPV6: source 2001:148:5:2::1 (local)
> Aug 2 11:55:34: dest 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:34: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 64, originating
> Aug 2 11:55:34: IPv6: Sending on Serial0/0.235
>
> 2. Aug 2 11:55:34: IPV6: source 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:34: dest 2001:148:5:2::1
> Aug 2 11:55:34: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 63, forward to ulp
> Rack2R2#
> Aug 2 11:55:34: IPV6: source 2001:148:5:2::1 (local)
> Aug 2 11:55:34: dest 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:34: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 64, originating
> Aug 2 11:55:35: IPv6: Sending on Serial0/0.235
>
> 3. Aug 2 11:55:36: IPV6: source 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:36: dest 2001:148:5:2::1
> Aug 2 11:55:36: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 63, forward to ulp
>
> Aug 2 11:55:36: IPV6: source 2001:148:5:2::1 (local)
> Aug 2 11:55:36: dest 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:36: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 64, originating
>
> 4. Aug 2 11:55:36: IPv6: Sending on Serial0/0.235
> Aug 2 11:55:36: IPV6: source 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:36: dest 2001:148:5:2::1
> Aug 2 11:55:36: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 63, forward to ulp
> Rack2R2#
>
> Aug 2 11:55:36: IPV6: source 2001:148:5:2::1 (local)
> Aug 2 11:55:36: dest 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:36: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 64, originating
> Aug 2 11:55:36: IPv6: Sending on Serial0/0.235
>
> 5. Aug 2 11:55:38: IPV6: source 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:38: dest 2001:148:5:2::1
> Aug 2 11:55:38: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 63, forward to ulp
>
>
> Aug 2 11:55:38: IPV6: source 2001:148:5:2::1 (local)
> Aug 2 11:55:38: dest 2001:148:5:235::3 (Serial0/0.235)
> Aug 2 11:55:38: traffic class 0, flow 0x0, len 100+4, prot 58,
hops
> 64, originating
> Aug 2 11:55:38: IPv6: Sending on Serial0/0.235
>
>
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