2011/7/7 Brez Borland <brez...@gmail.com>:
> Why would Proxy B want to _validate_ the certificate of Proxy A if it have
> not done so when Proxy A established a connection? Proxy B might want to
> _verify_ that Proxy A presented the same certificate when Proxy B falls
> back.

Even if proxy-A has presented a valid certificate during the INVITE
sent to proxy-B (a certificate that includes the domain in the INVITE
From) it could occur that the Via sent-by of the INVITE points to
other domain or other server.  Shouldn't in that case proxy-B require
certificate validation when contacting the "new" proxy-A?

Also, in the case Via sent-by is an IP, should proxy-B remember that
"this IP has sent me a valid certificate so now that I must contact it
for response fallback mechanism I will not require validating again
its cert"?

-- 
Iñaki Baz Castillo
<i...@aliax.net>

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