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The question: Is it possible to change the RTP binding address? If no, does anyone have any ideas how to work around the
problem? The network: 192.168.11.1 | < Asterisk > <Freeswan> < Iptables > | \ Dynamic IP Address | <VPN> | | / Static IP Address <Cisco Router> | 192.168.10.1 I am trying to get * to work on a Firewall/Nat router.
Since the Internet side of the Asterisk/Router is dynamic, I tunnel all
internal traffic across the VPN and switched the SIP binding addresses on both
Asterisk (in sip.conf) and Cisco to the internal interfaces to force the
traffic through the VPN. I can place a call from both sides OK but I can only
hear voice originating from the Cisco. From some network sniffing it appears RTP
traffic from Asterisk is using the external address so it doesn’t make it
inside the VPN. |
