Need to remove AS Path for Specific Networks

[LIONEL GRIFFITH]

Help!

<neta>-RTR1(AS70)<->WAN(BGPAS6500)<->RTR2(AS80)<->WAN(BGP AS6500)<->RTR3(AS90)-<netb>

RTR2 - is receive BGP update for neta with AS6500. I need to remove AS6500 from neta before advertising to RTR3. Similar, when RTR2 receive BGP update for netb, AS6500 path information need to be removed before advertising to RTR1.

What is the best configuration to accomplish this task? Thanks in advance

[ashok_boin]

Hi,

There are two possible techniques I can think of.

1. By using route aggregation which is simple technique if possible.

2. Or, use "network xxxx" command for neta at Rtr2 which will advertise as originated by Rtr2 AS as it can find matched entry for neta in its IP routing table. I guess this technique should work but not completely sure.

Thank you,

-Ashok.

[lars]

It's actually a simple task to complete.

Try have a look at http://www.cisco.com/en/US/customer/tech/tk365/technologies_configuration_example09186a0080093f29.shtml. It might be what you are looking for.