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Re: BGP Default Route

  • From: Mike Leber
  • Date: Sat Sep 14 16:20:46 2002


On Sat, 14 Sep 2002, Lupi, Guy wrote:
> I was wondering how people tend to generate default routes to customers
> running bgp.

Typically you would only originate default via BGP to a customer that
isn't taking a full view.

 neighbor 10.10.10.2 default-originate
 neighbor 10.10.10.2 filter-list 9 out

ip as-path access-list 9 deny ^.*$

>  Is it from the aggregation router that customers are directly
> connected to, or from one or more core/border routers?

In the example above the default originate is done via a specific BGP
session, so it isn't router wide on either core or border routers.

> If one is using a default route to null 0...

I'll leave the rest of this for somebody else to answer.

Mike.

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