[6bone] Re: routing concern

[Erik Bos]

On Tue, Jul 30, 2002 at 10:21:29AM -0400, John Fraizer wrote:
> > sl-bb1v6-rly#sho bgp ipv 2001:400::/24
> > BGP routing table entry for 2001:400::/24, version 3963
> > Paths: (0 available, no best path)
> > Flag: 0x820
> >   Not advertised to any peer
> > 
> 
> Looks like someone out there (?513? ?3265? ?4538?) is running broken a BGP
> implementation.  I don't see the route direct from 6175 and I trust from
> the output above that 6175 isn't announcing it but, (?513? ?3265? ?4538?)
> is holding on to the prefix (and redistributing it) for dear life!

We, AS3265, receive it from from AS1275:

sh bgp ipv6 2001:400::/24
BGP routing table entry for 2001:400::/24, version 799862
Paths: (1 available, best #1)
  Advertised to peer-groups:
     XS4ALL-IPv6
  1275 5623 9044 10566 6175, (received & used)
    3FFE:401:0:1::27:1 from 3FFE:401:0:1::27:1 (128.176.191.66)
      Origin IGP, localpref 100, valid, external, best

sh bgp ipv6 neighbors 3FFE:401:0:1::27:1 received-routes | begin 2001:400::/24
*> 2001:400::/24    3FFE:401:0:1::27:1
                                                           0 1275 5623 9044 10566 6175 i

The box is running Cisco ios 12.2(8)T2.

> Border2-BGP> sh ipv6 bgp 2001:400::/24
> BGP routing table entry for 2001:400::/24
> Paths: (4 available, best #3, table Default-IP-Routing-Table)
>   Advertised to non peer-group peers:
>   2001:4f0::1 2001:630:0:f001::1 3ffe:1ced:ff02::2 3ffe:1ced:ff06::2
>   3ffe:1ced:ff07::2 3ffe:1ced:ff0a::2 3ffe:2900:d:e::1
>   3ffe:31ff:0:ffff::50 3ffe:4005:0:1::26 3ffe:80c0:200:5::36
>   3ffe:8160:0:1::c 3ffe:81d0:ffff:2::44
>   6435 2549 513 3265 4538 6175
>     3ffe:8160:0:1::c from 3ffe:8160:0:1::c (64.65.64.152)
>     (fe80::4041:4098)
>       Origin IGP, localpref 100, valid, external
>       Last update: Tue Jul 30 08:38:19 2002
> 
>   4554 109 513 3265 4538 6175
>     3ffe:1ced:ff06::2 from 3ffe:1ced:ff06::2 (192.0.1.1)
>     (fe80::c620:401)
>       Origin IGP, metric 1, localpref 100, valid, external
>       Last update: Tue Jul 30 08:38:37 2002
> 
>   109 513 3265 4538 6175
>     3ffe:c00:8023:4::1 from 3ffe:c00:8023:4::1 (128.107.240.254)
>       Origin IGP, localpref 100, valid, external, best
>       Last update: Tue Jul 30 08:38:35 2002
> 
>   22 109 513 3265 4538 6175
>     3ffe:1ced:ff05::2 from 3ffe:1ced:ff05::2 (198.253.28.59)
>     (fe80::c6fd:1c3b)
>       Origin IGP, localpref 100, valid, external
>       Last update: Tue Jul 30 08:38:42 2002
> 
> 
> 
> ---
> John Fraizer              | High-Security Datacenter Services |
> EnterZone, Inc            | Dedicated circuits 64k - 155M OC3 |
> http://www.enterzone.net/ | Virtual, Dedicated, Colocation    |
> 
> 
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