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Re: Who does source address validation? (was Re: what's that smell?)
- From: David Schwartz
- Date: Wed Oct 09 19:53:36 2002
On Wed, 9 Oct 2002 15:53:40 -0400 (EDT), firstname.lastname@example.org wrote:
>>>Do you have experience of such breakage from your own customers? It
>>>would be interesting to hear details.
>> Loss of ICMP packets generated by links with endpoints numbered in
>>space. Holes in traceroutes, broken PMTU detection.
>Why do those links have endpoints in RFC1918 space to begin with?
Because some administrators are ignorant, clueless, or malicious. We don't
all have the luxury of saying, "It doesn't work on our network and it does on
our competitor's, and we could fix it if we wanted to at no significant harm
to us, but we won't because we are in the right."