route filtering in large networks

Thu Mar 13 04:59:18 UTC 2003

From: "Michael K. Smith"

>
> Check out http://www.cymru.com/Documents/secure-ios-template.html
>
> All of the various Bogons, including unassigned ranges, are represented
with
> a route to null0.
>
Nice, although it doesn't explain the purpose of having the routes if you
have an acl. To keep viruses from attempting to contact bogons? To stop your
internal network from surfing the bogon web which can't reply back anyways?

-Jack