[c-nsp] BGP Problem

[Arturo Servin]

Harold Ritter (hritter) wrote:

>This looks like a valid update. Do you have maximum-prefix configured on
>this neighbor? What level of IOS is this?
>
>Harold
>
>-----Original Message-----
>From: cisco-nsp-bounces at puck.nether.net
>[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Arturo Servin
>Sent: Wednesday, July 20, 2005 3:03 PM
>To: cisco-nsp at puck.nether.net
>Subject: [c-nsp] BGP Problem
>
>Hi,
>
>    We had this error on one router. We think that it was a bgp attack,
>but we are not sure. The router has the last IOS version of the trend
>and it is not affected by the BGP bug.
>
>Jul 17 22:11:33: %BGP-3-NOTIFICATION: sent to neighbor <IP neighbor>
>(update malformed) 0 bytes  FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0047
>0200 0000 2840 0101 0040 020E 0206 2BA4 0A80 1B6A 04D7 493B 4BE5 4003
>04CF F8E1 E940 0600 C007 064B E5DD 0404 0416 C845 6814 C872 00
>
>    Some body with the same experience in the past?
>
>Thanks,
>-as
>
>  
>
    12.2(15)T12.

    We do not have configured anything uncommon.

router bgp 10479
 no synchronization
 bgp log-neighbor-changes
 network a.b.c.d
 neighbor A.B.C.D  remote-as 11172
 neighbor A.B.C.D next-hop-self
 neighbor A.B.C.D soft-reconfiguration inbound
 neighbor A.B.C.D filter-list 11 in
 neighbor A.B.C.D filter-list 10 out
 no auto-summary

-as





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