Quick 5 minute config...

Router1:
!
router bgp YOUR_ASN
 network your_aggregate mask x.x.x.x
 neighbor router2 remote-as YOUR_ASN
 neighbor router2 next-hop-self
 neighbor ISP2 remote-as ISP2_ASN
 neighbor ISP2 prefix-list outbound out
 neighbor ISP2 filter-list 1 out
!
ip prefix-list outbound seq 5 permit your_aggregate/cidr
ip prefix-list outbound seq 10 permit your_specifics_if_any_that_needs_to_be_announced/24
ip prefix-list outbound seq 20 deny 0.0.0.0/0 le 32
!
ip as-path access-list 1 permit ^$
ip as-path access-list 1 permit ^(_YOURAS)+$


Router2:
!
router bgp YOUR_ASN
 network your_aggregate mask x.x.x.x
 neighbor router1 remote-as YOUR_ASN
 neighbor router1 next-hop-self
 neighbor ISP1 remote-as ISP1_ASN
 neighbor ISP1 prefix-list outbound out
 neighbor ISP1 filter-list 1 out
!
ip prefix-list outbound seq 5 permit your_aggregate/cidr
ip prefix-list outbound seq 10 permit your_specifics_if_any_that_needs_to_be_announced/24
ip prefix-list outbound seq 20 deny 0.0.0.0/0 le 32
!
ip as-path access-list 1 permit ^$
ip as-path access-list 1 permit ^(_YOURAS)+$

-hc
-- 
Sincerely,
  Haesu C.
  TowardEX Technologies, Inc.
  WWW: http://www.towardex.com
  E-mail: haesu@...
  Cell: (978) 394-2867

On Tue, Jul 15, 2003 at 02:47:02PM -0700, Christopher J. Wolff wrote:
> Hello,
> 
> I'm looking for a couple of sample cisco configs that illustrate two
> multihomed routers connected by an IGP session.  For example;
> 
> Router 1----------Isp 1
> |
> |
> IGP
> |
> |
> Router 2----------Isp 2
> 
> I read the Cisco scenarios for multihomed networks documents but I
> didn't like what I read.  Thank you in advance.
> 
> C.J. Wolff, VP CIO
> Broadband Laboratories, Inc.
> http://www.bblabs.com 
> 
> 
> 
> 

Replies

[isp-bgp] Sample BGP Config, Christopher J. Wolff