[ILUG] Problems with Three Mobile-Broadband Router

Ronan Mullally ronan at iol.ie
Mon Jul 20 22:39:38 IST 2009


Ian Spillane wrote:

> I would welcome suggestions on how to prove what is going on.
> 
> Is there a bullet-proof way to audit all Internet traffic out of a network?

Plug your 3G dongle into whatever's behind your router (laptop / desktop 
/ etc) and use that instead of the router.  If the device in question is 
running linux (why else you you be in ilug) it's easy enough to set it 
up as a router.  Running tcpdump or ethereal/wireshark will tell you 
exactly what traffic is passing up and down the link.

Does Three's online usage monitor or your ppp.log file indicate which 
direction the bulk of traffic is heading?


-Ronan




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