Hi Tim, If I understand you correctly, your setup is like: PC -- VoIP phone -- router -- modem -- internet where the VoIP phone contains an integrated two-port Ethernet switch.
One way would be to extend your setup with a hub, like: PC -- VoIP phone -- router -- hub -- modem -- internet Make sure the hub is an authentic hub, forwarding all packets to all ports. Avoid a switch. Connect 3 ports to this hub: - the WAN Ethernet port of the router - the Ethernet port of the modem - the LAN Ethernet port of a PC (running Wireshark) Wireshark should sniff all traffic between your LAN and the Internet, so you might want to filter on IP address(es) or VoIP protocol (e.g. sip). Happy sniffing, Tom. ________________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tim Gaunt Sent: dinsdag 22 januari 2008 12:09 To: wireshark-users@wireshark.org Subject: [Wireshark-users] Monitoring traffic from a VOIP phone Hi, I'm currently trying to diagnose an issue with a VOIP phone and someone suggested I snif the traffic -and suggested wireshark. I've had a look around and was wondering if anyone could point me in the right direction. I connect to a router through the phone and the phone connects directly to the router (a Belkin N1), is there anyway I can monitor the traffic to/from the VOIP provider? TIA Tim _______________________________________________ Wireshark-users mailing list Wireshark-users@wireshark.org http://www.wireshark.org/mailman/listinfo/wireshark-users