VoIP with NAT

mthibodeau · ‎02-22-2001

Hi,

I would like to know if someone have already done a setup with voip with one site that is "nated"???

One peer have a public IP and the other one is behind a firewall with a static nat statement (public to private)...

Any experience with that will be very appreciated...

Thanks

Marquis

sachon · ‎02-22-2001

If you are using H.323, one methodology to overcome NAT boundaries is to use Cisco's Multimedia Conference Manager. The MCM has a proxy capability so that voice streams can originate from a NAT address and convert to a valid IP address. Look at http://www.cisco.com/warp/public/732/net_enabled/mcm/

vmalhi · ‎02-23-2001

I've looked around for a firewall/proxy server which would support H323 and pass RTP traffic through networks which were NAT'ed. The PIX doesn't do it, you will have some success looking at aravox [voiceshield] although I have not performed a hands-on evaluation yet.

www.aravox.com

mthibodeau · ‎02-23-2001

Hi,

Is Cisco confirm that the PIX don't support it???

What SIP... it should be ok, according to them...

dngo01 · ‎06-15-2001

Can anyone else confirm that PIX will support SIP. How?