[c-nsp] BGP Route Nailing & Reoriginating

[Lawrence Wong]

Dear gurus,

I have an environment as follows:

        (R1 / AS1) <-> (R2 / AS2) <-> (R3 / AS3)


R1 (router 1) has AS number 1 (AS 1) and advertises the routes 1.1.1.0/24 and 2.2.2.0/24 to R2 which inturn advertises to R3. All advertisement is done via eBGP.

Is it possible to configure R2 such that the routes 1.1.1.0/24 and 2.2.2.0/24 are advertised to R3 under AS2 instead of AS1? At the same time, can R2 "nail" down the routes so that in the event the (physical & BGP) link between R1 and R2 is down, the route continues to be advertised to R3 (and under AS2)?

The objective is to "hide" AS1 and also to prevent BGP dampening at R3 caused by flapping link between R1 & R2.


TIA!





 
____________________________________________________________________________________
Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail beta.
http://new.mail.yahoo.com