Guy, Thankyou very much indeed for taking the time to point me to that info - I was well aware of the problems that could be caused by switches or switching hubs, but I wasn't familiar with the problems caused by 10/100Mbps auto-sensing hubs. This was my problem and now that I have my ethereal box configured in 10Mbps mode it is seeing the VoIP traffic just fine.
Thanks again, Mat > -----Original Message----- > From: Guy Harris [mailto:[EMAIL PROTECTED] > Sent: 09 October 2003 20:04 > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: Re: [Ethereal-users] capturing cisco ata186 traffic > > > > On Oct 8, 2003, at 6:25 AM, Mat Ford wrote: > > > I'm trying to us ethereal to capture traffic from my Cisco ATA186 VoIP > > adapter but ethereal seems unable to see any of the traffic. > > Is Ethereal running on a machine to which all of the traffic is going, > or is some of it traffic going neither to nor from the machine running > Ethereal? > > If some of it is traffic going neither to nor from the machine running > Ethereal ("third-party" traffic), then see: > > http://www.ethereal.com/faq.html#q5.1 > > (which I suspect might be the most frequently asked question about > traffic capture - and not just on the ethereal-users mailing list; as I > remember, I've seen something in either NAI Sniffer or Etherpeek > documentation about the same issue). > >
