We trying to do videoconferencing from a Polycom box through the internet to another polycom box. The boxes use H232 and H239 for the video conferencing and the content streaming.
At our site we have the internet coming into a DMZ switch that goes into an internet router/firewall. The FW is a Cisco 2811 running AdvIPServices IOS 12.4.22T. I have a one to one NAT setup from the internal address of the polycom to the external address I'd like to give it. I currently have "tcp" and "udp" open for all sources in my firewall config from the internet to the polycom.
People can connect to our unit but cannot see video. I was running an older version of the IOS (12.4.9(t6)) and it was working (except for H.239). They also cannot ping the WAN IP address anymore since the upgrade. The firewall is using inspect class-map and zones. I also cannot ping the WAN side IP from inside. I used to beable to do that before the upgrade.
Any ideas? Anything about the 2811 in FW mode that might alter and/or block H232 or H239 in an abnormal way (like the PIX and h232 fixup)?