[c-nsp] BGP default route

[Hank Nussbacher]

On Wed, 11 Jun 2008, Ozgur Guler wrote:

For a better reference try:
http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a0080094309.shtml

-Hank

> Conditional route advertisement might help...
>
> http://www.cisco.com/en/US/docs/ios/iproute/command/reference/irp_bgp3.html#wp1012658
>
>
>
>
> --- On Wed, 11/6/08, Gary Roberton <gary.ciscomail at gmail.com> wrote:
> From: Gary Roberton <gary.ciscomail at gmail.com>
> Subject: [c-nsp] BGP default route
> To: cisco-nsp at puck.nether.net
> Date: Wednesday, 11 June, 2008, 1:44 PM
>
> Hi
>
> I have three routers, R1 > R2 >  R3.
>
> R1 advertises a default route to R2 by using default-originate
> R2 advertises a default route to R3 by using default-originate
>
> However, I only want R2 to advertise to R3 if it receives the default route
> from R1.  In other words if connectivity is lost between R1 and R2 I dont
> want R2 adveetising the default route to R3 as the path won't be valid.
>
> Ideas?
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