03/05/97 Internet Routing Problems

This is a prinicpal example of why people should be filtering on
both inbound & outbound announcements of default & RFC1918 address
space.

Well we do this (we also filter out some other things we
don't want to hear from other people), but this set me
thinking. Is there anyone who actually has a good reason
to propogate default and reserved addresses through the RA?
Wouldn't it be a good move for the RA itself to filter
these announcements (in addition to what's in the policy)?

Alex Bligh
Xara Networks

   > This is a prinicpal example of why people should be filtering on
   > both inbound & outbound announcements of default & RFC1918 address
   > space.
   
   Well we do this (we also filter out some other things we
   don't want to hear from other people), but this set me
   thinking. Is there anyone who actually has a good reason
   to propogate default and reserved addresses through the RA?
   Wouldn't it be a good move for the RA itself to filter
   these announcements (in addition to what's in the policy)?

Alex,

At least in theory, it is. Read paragraph titled "The Routing Arbiter's
Responsibility" in <http://www.ra.net/RADB.tools.docs/radbserv.html>.