Using a Polycom VSX-7000 Behind a Cisco PIX Firewall
Posted on 2007-11-29
I am trying to use a Polycom VSX-7000 Video conferencing system behind a PIX fiewall. I have set all features in both the PIX and the VSX to recommended settings but I can't complete a connection. I can tracert from the VSX to the remote site but a call will not complete - the Polycom just rings and the other site does not answer.
We are using a PIX 506E, with vers. 6.3(5) software. The Polycom is using ver. 8.5.3 and we are not using Gatekeeper.
I listed the changes made to our PIX as recommended by Polycom. When discussing the problem with Polycom they believe it's a PIX problem. I can't seem to find what we need to change to make this work. Has anyone setup a PIX to handle a Polycom Video Conferencing system?
PIX Changes --
Opened outbound ports - TCP 1720
TCP 3230 - 3235
UDP 3230 - 3253
Opened inside interface (all IP) to video device.
Entered a static NAT to translate inside/outside addresses.
Tried with both fixup h323 h225 1720 and with no fixup h323 h225 1720 - same results.
The Polycom has an inside LAN adddress and has NAT turned off in the software settings. We assume this is correct since the PIX is handling the NAT.