Hi Chris,
I don't know how I have to configure my Linux-Firewall, IPCHAINS, that my users can do Netmeeting.. I' able to connect to another user, the other user can hear me but I can't hear the user.. The other user also can't phone be.. But that's not the problem..
What rules I have to set including the masquerading rules that my machines behind the firewall can use netmeeting and can hear others from the Internet?
we had the same problem here; add 'RSVP' to /etc/protocols should be number 46 iirc; have a look at rfc 1700; (or 'cut & paste' the protocol-part of rfc 1700 into /etc/protocols) the next step is to allow all 'RSVP'- traffic: ipchains -A foo -p RSVP -s ... if someone has problems with debugging a firewall; simply log everything, before the default policy throws everything away ... (log&deny tcp-packets with SYN & SYN/ACK; deny tcp; log&deny anything that's left) hth Jan