static route to null0

Unanswered Question
May 26th, 2009

Guys can someone please explain in a very plain language why we use static route for null0 and can you please give an easy example as well.....do we only use this in BGp or it can be used in other routing protocol

I have this problem too.
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Collin Clark Tue, 05/26/2009 - 05:19

It is to point traffic to a certain destination to a non-existent interface. It is used outside of BGP as well. Let's say that a worm comes out, your PC's get infected, and it starts sending data to a public IP on the internet. One way to prevent that data transfer would be to enter a null route in your router.

Hope that helps.

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