From: Wade Edwards (wade.edwards@xxxxxxxxxxxxxxxxxxx)
Date: Thu Feb 01 2001 - 14:58:38 GMT-3
>2) BGP filtering from
> R1 (Network command) -- iBGP-- R2 --- EBGP -- R3
>
>Filter the route you injected in R1 from R3 not by IP.
>
>I was thinking TAG but on R2 it doesn't let you match
>OUT based on a tag or Metric. When I tried route-type
>internal it did work (well it blocked all the internal
>routes).
>
>So I thought trying a community. I am not sure if I
>configured the Network command properly to add a
>community to that route.
>
>on R1
>int loopback, ip addr 10.8.1.1 255.255.255.255
>
>router BGP 10
> neighbor R2 send-community
> network 10.8.1.1 mask 255.255.255.255 route-map TAG2
>
>route-map TAG2 p 10
> set comm 1 no-export <-- Prevents from going to
>other AS
I believe you have to place the route-map on the neighbor statement like
this.
router BGP 10
neighbor 1.1.1.1 remote-as 10
neighbor 1.1.1.1 send-community
neighbor 1.1.1.1 route-map TAG2 out
route-map TAG2 permit 10
match ip address 1
set community no-export
route-map TAG2 permit 20
match ip address 2
access-list 1 permit host 10.8.1.1
access-list 2 permit any
L8r
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:28:33 GMT-3