Huh? Has this happened to you in practice?
It sure has. Polycom phone queries DNS for domain.com and gets round robin IP
of 192.168.10.1. It sends a REGISTER request to that IP. Asterisk at
192.168.10.1 sends back a 407 Proxy Auth required. The polycom phone then
queries DNS again and gets 192.168.10.2 this time and sends the REGISTER with
auth info included this time to Asterisk at 192.168.10.2. The Asterisk at
192.168.10.2 box goes 'huh. What the hell is this for?' becuase it never
received the original REGISTER, and drops it on the floor. The phone never gets
an OK to its register request.
Doug.
Makes sense. We only use the round robin records for the outbound proxy,
so the only time they use the other servers is when they make outgoing
calls. As for the registrations, the phones register with a primary
server and a secondary server (or in the case of the polycoms, if server
one is down, it re-registers with server two immediately... it works,
we've tested it), so any server in the round robin group knows about the
phones when they make outbound calls.
However, I think in the sense of actually MAKING phone calls, once it gets
an ip address for a round-robined host, it continues talking to that
host... i.e. Once the phone's in a conversation, all related packets for
the stream go through the same server, not to any other server in the
group.
--
Aaron Daniel
Computer Systems Technician
Sam Houston State University
[EMAIL PROTECTED]
(936) 294-4198
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