what's that smell?

Tue Oct 8 07:32:21 UTC 2002

On Tue, 8 Oct 2002, Chris Wedgwood wrote:

> FWIW, almost nobody filters rfc1918 packets outbound and a good
> percentage of ISP customers bleed these something terrible

Actually, that's a good thing. This makes it trivial to detect which peers
aren't doing egress filtering. If people just filtered RFC 1918 space,
everything would just look better, but the underlying problem wouldn't be
solved: it would still be possible to launch very hard to trace or stop
denial of service attacks from those networks.