Hi all, I would like to know how to get windows messenger work with Shorewall. I read the page on Microsoft and it say it has to be UPnP compliant? Do I have to install the H323 Module. If yes, can someone please teach me how I can do that on redhat 7.2. I know I''m kinda linking to another problem, but I''ve been trying to get it work (netmeeting/windows messenger) for ages. I read through the pages on netfilter website and mailing list archive but found no clue. I just downloaded the h323 modules but don''t know how to install nor link them to Shorewall. I really need to get it to work, so any help would be appreciated! Thanks, Leo By the way: I solved the problem before on the subject " two-interface, checked everything, STILL does not work" . There were nothing wrong with my config files but I reboot the server once , start pppoe then firewall again and it worked. However, I notice that there are something from iptables -L which isn''t there before: Chain rfc1918 (2 references) target prot opt source destination RETURN all -- 255.255.255.255 anywhere DROP all -- 169.254.0.0/16 anywhere logdrop all -- 172.16.0.0/12 anywhere logdrop all -- 192.0.2.0/24 anywhere logdrop all -- 192.168.0.0/16 anywhere ... < cut off > I don''t know if it make sense but I hope I''m just pointing it out =)