Randy, IPChains on RH72 (or any 2.4.x kernel distribution) is an emulation layer (in module form) on top of IPTables. If NetMeeting needs port forwarding or redirection to make it work properly you will probably need to drop the IPChains emulation layer and convert your rules for IPTables. The external programs IPChains used to make port forwarding and redirection work will not work with the emulation layer. So, I think now is the time you absolutely have to convert or go backwards. Once you do wrap your head around IPTables, though, I think you will appreciate it's advantages over IPChains. Good luck, Troy >>> rclark at lakesplus.com 08/22/02 12:28PM >>> Ok ... I have RH7.2 running an IPCHAINS firewall (it has worked before so I thought why convert to iptables until I absolutely have to). I have a Win2000 box behind the firewall on an internal network and I want to be able to call out with NetMeeting for video conferencing. On a Caldera 2.2.X kernel I used IP Masquerading. What is the equivalent on RH7.2 with a 2.4.X kernel and does anyone know of a HOW-TO that exists out there? There is one IP that I need to connect to on a weekly basis. I have them listed in my firewall to have full access, but even with that, the last couple of times we have videoconferenced they can hear me and see me (sometimes hangs), but I can not hear or see them. Nothing shows up in the log file as well. The "chat" version of NetMeeting works fine. Many thanks in advance. Randy Clarksean, Ph.D., P.E. Leading Technology Designs, Inc. 106 North Boardman Ave. P.O. Box N New York Mills, MN 56567 "Science is organized knowledge. Wisdom is organized life." - Immanuel Kant ph: 218-385-3750 fax:218-385-3751 email: rclark at lakesplus.com