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Wireshark-users: Re: [Wireshark-users] Monitoring traffic from a VOIP phone

From: "Tim Gaunt" <info@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 22 Jan 2008 13:45:09 -0000
Thanks Tom, I've only got a switching hub here but will pop out and pickup a
standard hub.

I'll let you know how I get on.

Tim

> -----Original Message-----
> From: Tom Heyligen [mailto:T.Heyligen@xxxxxxxxxx]
> Sent: 22 January 2008 13:03
> To: info@xxxxxxxxxxxxxxxxxxx; Community support list for Wireshark
> Subject: RE: [Wireshark-users] Monitoring traffic from a VOIP phone
> 
> 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: wireshark-users-bounces@xxxxxxxxxxxxx
> [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Tim Gaunt
> Sent: dinsdag 22 januari 2008 12:09
> To: wireshark-users@xxxxxxxxxxxxx
> 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