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BGP route-map with community tagging not working

vanjaburic
Level 1
Level 1

This is all done in GNS3 and it got me stumped so any helps is appreciated.

I am trying to advertize only certain routes (24.1.0.0/20) from R1 to ISP via ip community-list but for some reason ISP is not seeing 24.1.0.0/20 the route.

Explanation:

R1(AS20)—R2(AS20)--> ISP(AS10)

R1 and R2 are in the same AS and are directly connected.

24.1.0.0/20 is generated on R1 via aggregate address and tagged by community 300:61100, and then passed down to R2.

R2 sees the 24.1.0.0/20 route as well as its community as you can see from the output:

R2#show ip bgp 24.1.0.0/20

BGP routing table entry for 24.1.0.0/20, version 9

Paths: (1 available, best #1, table Default-IP-Routing-Table)

  Not advertised to any peer

  Local, (aggregated by 20115 96.34.15.2)

    96.34.15.2 (metric 3550) from 96.34.15.2 (96.34.15.2)

      Origin IGP, metric 0, localpref 100, valid, internal, atomic-aggregate, best

      Community: 300:61100

But for some reason it won’t pass it to ISP.

On R2 I have following config:

router bgp 20

neighbor 8.4.4.6 activate

neighbor 8.4.4.6 send-community

neighbor 8.4.4.6 route-map L3-TEST out

!

ip community-list standard REGIONAL-AGGS permit 300:61100

!

route-map L3-TEST permit 10

match community REGIONAL-AGGS

Without the route-map ISP of course sees 24.1.0.0/20 (and everything else) because everything is allowed. But I just want to pass that specific route to the ISP router. What am I doing wrong with this route map?

Note: I do have  send-community command on all routers.

Any help is appreciated.

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