From: kym blair (kymblair@xxxxxxxxxxx)
Date: Mon Jun 17 2002 - 10:22:55 GMT-3
SOLUTION 1 (only permits route 10.10.10.0 to be advertised):
R1
access-list 12 permit 10.10.10.0 0.0.0.255
route-map LET10GO permit 10
match ip addr 12
bgp 4
neighbor 10.10.30.2 route-map LET10GO out
--------------------------------------------------
SOLUTION 2 (same):
R1
access-list 12 permit 10.10.10.0 0.0.0.255
bgp 4
neighbor 10.10.30.2 distribute-list 12 out
---------------------------------------------------
SOLUTION 3 (lets all routes except .20 go):
R1
access-list 12 deny 10.10.20.0 0.0.0.255
route-map BLOCK30 deny 10
match ip address 12
route-map BLOCK30 permit 20
bgp 4
neighbor 10.10.30.2 route-map BLOCK30 out
--------------------------------------------------
SOLUTION 4 (filters inbound; not as effective):
R2
access-list 12 permit 10.10.10.0 0.0.0.255
route-map LET10IN permit 10
match ip address 12
bgp 4
neighbor 10.10.30.1 route-map LET10IN in
HTH, Kym
--------------------------------------------------------
>From: \mit A~kan (TK-Network Gvz|mleri) <umit.askan@probil.com.tr>
>Reply-To: \mit A~kan (TK-Network Gvz|mleri) <umit.askan@probil.com.tr>
>To: "Ccie (E-mail)" <ccielab@groupstudy.com>
>Subject: BGP no-filter
>Date: Mon, 17 Jun 2002 15:59:50 +0300
>
>Hi,
>
>I have got a problem like that :
>
>network 10.10.10.0 R1-------EBGP--------R2
>network 10.10.20.0
>
>I want to see only 10.10.10.0 at R2 bgp table. But if you look to the
>R1's advertised routes to R2, you will see 10.10.10.0 and 10.10.20.0.
>You can't do anything on R2 for that routes.
>
>Best Regards
>
>\mit A~kan
>Consulting Network Engineer
>CCNP, CCDP, CCNP-Security, CCNP-Voice Access
>
> > Probil Bilgi Islem Destek ve Danismanlik San. ve Tic. A.S.
>Eski Buyukdere Caddesi Dilaver Sokak No.4
>Otosanayi 4. Levent 80660 Istanbul
>
>Tel: +90 (212) 317 61 00 (219)
>Direkt : +90 (212) 317 62 19
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>E-Mail: umit.askan@probil.com.tr
>Web: www.probil.com.tr
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:34 GMT-3