Mark Crispin <[EMAIL PROTECTED]> writes: > On Wed, 27 Nov 2002 18:49:09 +0100, Simon Josefsson wrote: >> IMHO it depends on how you define "localhost", and how you determine >> if the connection is to "localhost" or not. Looking up the address >> for the name "localhost" in DNS and checking if the address match the >> source address of incoming packets is a very poor idea, for instance. > > I suspect that the only safe way is to wire in 127.x.x.x (for IP4) and do > whatever is the equivalent in IP6.
What guarantees that traffic from 127.17.23.42 did not go through non-local systems?
