[c-nsp] BGP advert problem...
omar parihuana
omar.parihuana at gmail.com
Tue Nov 21 16:33:37 EST 2006
mmmmh the next-hop (67.111.165.34) is reachable by internal peers? any
special community value? (i.e. local-as?)
Upstream providers are allowing downstream networks?
Rgds.
On 11/21/06, Chris Hale <chris-lists at pipelinewireless.us> wrote:
>
> All -
>
> I'm having an issue with a new customer's BGP advertisement. I'm
> receiveing
> their advert w/o issue, but for whatever reason, my 7206 won't advert to
> my
> upstreams. I have about 12 BGP peers on this router with no problems, but
> for whatever reason, this ONE route won't advertise. The neighbor in
> question is 67.111.165.34, AS27498, advertising 67.110.152.0/24 to us.
>
> hancock-core1#show ip route 67.110.152.0
> Routing entry for 67.110.152.0/24
> Known via "bgp 32623", distance 20, metric 0
> Tag 27498, type external
> Last update from 67.111.165.34 3d18h ago
> Routing Descriptor Blocks:
> * 67.111.165.34, from 67.111.165.34, 3d18h ago
> Route metric is 0, traffic share count is 1
> AS Hops 4
> Route tag 27498
>
> hancock-core1#show ip bgp 67.110.152.0
> BGP routing table entry for 67.110.152.0/24, version 34364598
> Paths: (3 available, best #2, table Default-IP-Routing-Table)
> Advertised to update-groups:
> 1 5
> 14985 3356 2828 27498
> 216.57.129.81 from 216.57.129.81 (216.57.128.227)
> Origin IGP, localpref 110, valid, external
> Community: 3356:3 3356:22 3356:86 3356:575 3356:666 3356:2006
> 14985:1328
> 27498 27498 27498 27498
> 67.111.165.34 from 67.111.165.34 (67.110.152.1)
> Origin IGP, metric 0, localpref 150, valid, external, best
> 701 2828 27498
> 65.194.77.145 from 65.194.77.145 (137.39.7.197)
> Origin IGP, localpref 100, valid, external
>
> neighbor ctransit-pg peer-group
> neighbor ctransit-pg version 4
> neighbor ctransit-pg route-map standardout out
> neighbor ctransit-pg filter-list 3 out
>
> ip as-path access-list 3 permit $^
> ip as-path access-list 3 permit ^27498$
> ip as-path access-list 3 deny .*
>
> route-map standardout permit 10
> match ip address prefix-list RAP-234552:AS27498
>
> ip prefix-list RAP-234552:AS27498 seq 10 permit 67.110.152.0/24 le 32
>
> 216.57.129.81 is one of our upstream peers - no advertisement of
> 67.110.152.0/24???
>
> hancock-core1#show ip bgp neighbors 216.57.129.81 advertised-routes
> BGP table version is 35954040, local router ID is 216.57.90.81
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 63.116.222.0/23 216.57.90.66 0 32768 i
> *> 65.215.74.0/24 216.57.89.2 0 150 0 14099 i
> *> 67.111.165.0/24 0.0.0.0 0 32768 i
> *> 72.5.24.0/23 216.57.89.62 0 150 0 30537 i
> *> 72.46.160.0/20 0.0.0.0 0 32768 i
> *> 72.46.168.0/24 216.57.82.6 0 150 0 36129 i
> *> 155.212.207.0/24 67.111.165.42 0 150 0 26684 i
> *> 198.112.75.0 216.57.91.18 0 150 0 31817 i
> *> 208.253.178.0/23 216.57.90.66 0 32768 i
> *> 216.57.82.0/23 216.57.90.66 0 32768 i
> *> 216.57.88.0/21 216.57.90.66 0 32768 i
> *> 216.57.94.0 216.57.89.2 0 150 0 14099 i
>
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--
Omar E.P.T
-----------------
Certified Networking Professionals make better Connections!
http://omarept.blogspot.com/
Usysnet Corp
Open Source Solutions
www.usysnet.com.pe
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