What Ports need to be open to Video Conference?

[geast]

I am setting up video conferencing at my site. What ports need to be open to do this? I already have 1719 and 1720 open, along with having H323 enabled. We are running Pix version 5.2, bad thing is, we don't have a GUI interface, only command line. Can you help?

 

[yizhar]

HI.

Allowing ports isn't enough if the remote computer needs direct (inbound) access to a local computer.
Are you using PAT or NAT?
How many internal workstations will participate?
How many registered ip addresses you have?
Can you configure a static ip to one/few internal workstations that will participate in video conference?
What is your Internet connection bandwidth?
What software will be used?

Several options to consider are:
* Using STATIC instead of PAT for conference computers.
* Using VPN (either site to site or client to pix) to encapsulate.

I have no actual experience with video conference so these are my thoughts only.

Bye

Yizhar Hurwitz

http://come.to/yizhar

http://teachers.sivan.co.il/yizhar

 

[geast]

We have static Ip's NAT'ed to the internal machines that will participate. Conferencing between them is no problem, we need to get outside to a gatekeeper to conference with different sites. Bandwidth is not a problem, T1, I did find out that UDP ports are utilized but it is not static, it uses a range of them. We don't want to open up all the ports, how do I configure the cisco to only open the udp ports when needed?

 

[yizhar]

HI.

Check the protocol that your software uses (is it H323, RTSP, etc..),
then go to CISCO web site to see if the pix "fixup" supports it and more info:

http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_v52/index.htm

http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_v52/config/commands.htm#xtocid22

Bye
Yizhar Hurwitz

http://come.to/yizhar

http://teachers.sivan.co.il/yizhar