The thread I was responding to refered to filtering all routes (outbound) except those sourced from customers'/internal addresses. Regards, Deepak Jain AiNET On Wed, 28 Jul 1999, Mike Heller wrote:

I have an access list that I apply to all of our incoming interfaces that blocks the announcement of 127.0.0.1, 192.168.0.0, 10.0.0.0, and 172.16.0.0. It never changes. I don't see the stated impact on management.

Mike

On Wed, 28 Jul 1999, Dan Hollis wrote:

...

On Wed, 28 Jul 1999, Deepak Jain wrote:

...

While it is easy, it is not always practical because you often have customers who advertise thousands of prefixes.

Why would this have any impact on filtering rfc1918 and other invalid nets like 127.0.0.0/8 and 255.255.255.255?

Or perhaps someone could explain a valid reason to route these addresses.

-Dan