From: Anil Bollineni [EMAIL PROTECTED]
Assume a gateway sends two INVITEs say to two different UASs with the
same
Via branch parameter to two different users at the same time.
It must not do that. See section 8.1.1.7 of RFC 3261: The branch
parameter value MUST be unique across space and
From: Anil Bollineni [EMAIL PROTECTED]
I want to talk about NAT firewall. If two UA's behind NAT firewall
generate same
branch, and NAT ALG will change the VIA sent-by field to same value. In
this
case it could result matching same transaction.
True. Which is why UAs should generate branch
