08-29-2005 06:18 PM - edited 03-03-2019 10:22 AM
Hi all,
I have implemented PIX in between A & B router and now all my traffic(voice & data)passes thru pix.Rtr A is connected to my network and Rtr B is connected to my customer.Rtr A is inside and B is customer DMZ.Im having problems with voice.Are there any known issues of voice passing thru pix.PIX is 515E running Version 7.0(2)
08-29-2005 06:57 PM
Obviously access from DMZ to Inside will be blocked by default, unless you specify specific ports.
When you say VOIP, is it pure H323 traffic, is there any other protocol involved, Is there callmanager involved ??
For H323 signalling, you should open port TCP 1720.
For RTP payload (VOIP payload) open ports UDP 16384 through 32767.
You will want to bypass VOIP traffic from dynamic NAT and put a static mapping between inside and outside addresses.
Additionally enable fixup commands for H323, H225 etc.
Also check this link.
08-29-2005 08:53 PM
08-30-2005 02:51 AM
Hi all,
I just came to knw that fixup commands are not relevant in ver 7.0 Is there anything else which seems missing in my config or some other commands which might be necessary for the PIX to smoothly process voice traffic.
Thanks
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide