Hi, the command remove-private-as must be configured in all egress routers before the customer routes are advertised to other ISP. The IPS Upstreams don't notice about internal customer, AS_PATH, don't contain private AS, the remain BGP attributes won't be affected (of course if no changes were done)
Rgds. On 8/25/07, Nick Kraal <[EMAIL PROTECTED]> wrote: > > Dear all, > > I have a tricky/creative arrangement here to provide to a customer. > > [1] The customer has their own prefixes [a.b.c.d/20], but no ASN. > [2] We plan to run private BGP with the customer to receive this > prefix, and for us to announce the global routing table. > [3] Objective is to then announce this prefix as originating from AS111 > to all AS111 public BGP peers. > [4] Sample configuration at the end of this e-mail. Any potential traps > here? > [5] Prefix list [TUN-CUST-CIDR-BLOCK] is then used in route-maps with > other BGP peers. Are removing private-as and the inbound route-map > sufficient for BGP to pick this prefix up and announce it as AS111? > > Thanks in advance, > > -nick/ > ====================== > Current configuration: > > router bgp 111 > neighbor 200.100.1.10 remote-as 64001 > ! > address-family ipv4 > neighbor 203.100.1.10 activate > neighbor 203.100.1.10 next-hop-self > neighbor 203.100.1.10 remove-private-as > neighbor 200.100.1.10 soft-reconfiguration inbound > neighbor 200.100.1.10 route-map TUN-CUST-FILTER-IN in > neighbor 200.100.1.10 route-map TUN-CUST-FILTER-OUT out > ! > route-map TUN-CUST-FILTER-IN permit 5 > match ip address TUN-CUST-CIDR-BLOCK > set origin igp > ! > route-map TUN-CUST-FILTER-OUT permit 10 > match as-path 75 > ! > ip prefix-list TUN-CUST-CIDR-BLOCK seq 5 permit a.b.c.d/20 > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > -- Omar E.P.T ----------------- Certified Networking Professionals make better Connections! _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/