BGP route not advertised

Answered Question
Aug 19th, 2008

Good day...I have a quick question here I'm trying to advertised a 205.248.197.0 subnet but when I do a show ip bgp 205.248.197.0 I notice it says not advertised to any peer:

sh ip bgp 205.248.197.0

BGP routing table entry for 205.248.197.0/25, version 121282

Paths: (1 available, best #1, table Default-IP-Routing-Table, Advertisements suppressed by an aggregate.)

Not advertised to any peer

Local

172.19.205.5 from 0.0.0.0 (172.19.103.45)

Origin incomplete, metric 20, localpref 100, weight 32768, valid, sourced, best

what I'm actually trying to get to is a 205.248.197.152 address which by the way comes up with the same as above if I do a

show ip bgp 205.248.197.152

What am I missing here?

I have this problem too.
0 votes
Correct Answer by Harold Ritter about 8 years 5 months ago

Can you do a "show ip bgp 205.248.197.0 255.255.255.128" on the receiving router.

Regards,

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Overall Rating: 5 (1 ratings)
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Harold Ritter Tue, 08/19/2008 - 07:20

Warren,

This prefix is suppressed due to an "aggregate no-summary" command being configured for an aggregate route covering this prefix.

Regards,

wgranada1 Tue, 08/19/2008 - 07:25

do you mean aggregate summary?

aggregate-address 205.248.197.0 255.255.255.0 summary-only

Harold Ritter Tue, 08/19/2008 - 07:28

Yes, that is what I meant. 205.248.197.0/25 will be advertised if you take the aggregate command out of the configuration.

Regards,

sdoremus33 Tue, 08/19/2008 - 08:56

as mentioned previously simply take out the take the aggregate command 205.248.197.0/25 will be advertised if you Take cxare Warren say hi to Carl for me

wgranada1 Tue, 08/19/2008 - 09:14

one more question I took out the aggregate as suggested and now I do see it being adversited

I go to the distant and see this now:

sh ip bgp 205.248.197.152

BGP routing table entry for 205.248.197.0/24, version 0

Paths: (1 available, no best path)

Not advertised to any peer

64643 7381 64940 64821, (aggregated by 64821 172.19.103.45), (received-only)

168.162.52.185 from 168.162.52.185 (10.128.191.82)

Origin IGP, localpref 100, valid, external, atomic-aggregate

Harold Ritter Tue, 08/19/2008 - 12:12

Warren,

The received-only status means that the prefix is being filtered by an inbound policy. Make sure your inbound policy allows that prefix.

Regards,

Harold Ritter Tue, 08/19/2008 - 12:15

Oops, I just figured that this is actually the aggregate. Can you do a "show ip bgp 205.248.197.0 255.255.255.128".

Regards,

lamav Tue, 08/19/2008 - 17:07

Please post the entire BGP config, including any route maps and filters.

Victor

Correct Answer
Harold Ritter Wed, 08/20/2008 - 13:58

Can you do a "show ip bgp 205.248.197.0 255.255.255.128" on the receiving router.

Regards,

wgranada1 Thu, 08/21/2008 - 08:28

Sorry guys for wasting your time, I didn't bother checking that I was receiving the proper routes in chicago. I checked to see and found out that even though I was advertising locally the BGP route in Chicago I wasn't accepting it. Once I did that all is good now. Sorry about that

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