[asterisk-users] Asterisk behind a PIX firewall?

Ricardo Carvalho rjcarvalho.lists at gmail.com
Tue Nov 27 09:30:35 CST 2007

Try to just open port 5060 for SIP signaling on the PIX and also enable the
INSPECT SIP rule. That way, your PIX firewall will inspect SIP signalling
and open the necessary UDP ports for the RTP.

If you have NAT uptream in the network, you should see if in the layer 4 the
IPs shown in the SIP messages got rewritten by its public IPs, it should
have, or else you'll never get it working right.

Ricardo Carvalho.
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