route filtering in large networks
Michael K. Smith
mksmith at noanet.net
Thu Mar 13 04:44:36 UTC 2003
> >
> You think that's bad? Try this one. Contacted network to
> inform them that they had an access list on a router
> rejecting 69/8 and that 69/8 was recently handed out, blah
> blah blah. Get a call back saying that they found the route
> for 69 and removed it. Could I please try it again. To humor
> said person, I tried it again and got what I expected (A). My
> question is, if he's running an acl with a bogon list, why
> does he have a route (presumably static since it was removed)
> for 69/8? I'm tempted to start mailing out bananas.
>
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.
Mike
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