search for: cpdump

...mangle rules. However, I have the conntrack support compiled in, as I plan to move the firewall setup to the conntrack-based configuration in the future. I have various helpers compiled in, including a SIP helper. Recently I had problems via SIP (ekiga client) to and from the outside world. Using tcpdump I have discovered that when calling sip:user@ekiga.net, my workstation sent all RTP traffic to the ekiga.net host, instead of the host where the remote user has been logged in. I ran cpdump on both my local workstation and on the external interface of my firewall, while calling from the outside ho...