nanog mailing list archives
Re: General question on rfc1918
From: Sean Donelan <sean () donelan com>
Date: Tue, 13 Nov 2007 11:12:41 -0500 (EST)
On Tue, 13 Nov 2007, Drew Weaver wrote:
Is it to be expected to see rfc1918 src'd packets coming from transit carriers?
Yes. Any ISP which uses RFC1918 on "internal" links may generate various ICMP error packets (e.g. traceroute/TTL expire, PMTU discovery/Fragmentation required, etc) from router interfaces which have
RFC1918 addresses for transit traffic.Some people filter them anyway, and get "*"'s in traceroutes and PMTU weirdness.
#include "old debate about using RFC1918 addresses on transit links" #include "other old debate about filtering stuff in backbones or edge"
Current thread:
- General question on rfc1918 Drew Weaver (Nov 13)
- Re: General question on rfc1918 Joe Abley (Nov 13)
- RE: General question on rfc1918 Darden, Patrick S. (Nov 13)
- Re: General question on rfc1918 Justin M. Streiner (Nov 13)
- RE: General question on rfc1918 Drew Weaver (Nov 13)
- Re: General question on rfc1918 Joe Greco (Nov 13)
- Re: General question on rfc1918 Sean Donelan (Nov 13)
- Another question on rfc1918 Michael Painter (Nov 23)
- Re: Another question on rfc1918 Robert E. Seastrom (Nov 23)
- Re: Another question on rfc1918 Randy Bush (Nov 23)
- Re: Another question on rfc1918 Bruce M Simpson (Nov 24)
- <Possible follow-ups>
- Re: General question on rfc1918 Robert Bonomi (Nov 13)
- Re: General question on rfc1918 Joe Abley (Nov 13)
- Re: General question on rfc1918 Phil Regnauld (Nov 13)
- Re: General question on rfc1918 Joe Abley (Nov 13)
- Re: General question on rfc1918 Paul Ferguson (Nov 13)