[fw-wiz] IP-VPN/VoIP

Irwin Lazar ILazar@tbg.com
Thu, 21 Jun 2001 14:08:51 -0600

I'm curious to see what folks are doing to support VoIP across encrypted
IP-VPNs.  From our understanding, very few firewalls can statefully manage
the random port selection during an H.323 call setup, so the only way to
support VoIP across a firewall is to open up a range of ports.  For obvious
reasons, this isn't something I feel comfortable recommending.

Has anyone run across this issue and if so, how did you address it?

Irwin Lazar - ilazar@tbg.com <mailto:ilazar@tbg.com> 
Senior Consultant, The Burton Group
Office: 703-742-9659
Cell: 703-402-4119
"The Ultimate Resource For Network Architects"