From: Dean Willis <[EMAIL PROTECTED]> Sounds like you have reinvented identd, which has pretty much vanished from the Internet because it was found to not really add any useful authentication.
See: http://en.wikipedia.org/wiki/Ident Well, "Nonetheless Ident is widely used and considered useful by some." So tell me, how is this operationally different from IDENT? Ident is used to verify the other end of a TCP connection. The problem with Ident is that it doesn't reliably tell you more than the identity of the host from which the connection comes from (because you can't really trust identd at the far end), and you knew what the host was already by looking at the packet addresses. With SIP, you don't know that the originating UAS has the same name as it is claiming to have, because you got the SIP message from some nearby proxy. DERIVE is more like doing a reverse DNS lookup to see if the originating host has the name that it claims to have. Dale _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
