Ethereal-users: Re: [Ethereal-users] help

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

Date Index Thread Index Other Months All Mailing Lists
Date Prev Date Next Thread Prev Thread Next
From: Guy Harris <gharris@xxxxxxxxx>
Date: Sun, 9 May 2004 11:58:28 -0700
On Sun, May 09, 2004 at 10:35:57PM +0800, james wrote:
> Thanks, I have got a hub and plugged the pc, ip phone and router into it .
> When I capture I get to see some UDP,ICMP,ARP protocols but not any of the
> H323 family protocols from my IP phone.
> What could be the reason

What are the destination Ethernet addresses of the packets you're
seeing?

If they're all either ff:ff:ff:ff:ff:ff or multicast addresses, then the
reason is probably

	http://www.ethereal.com/faq.html#q5.1

Note what that FAQ says about hubs - not all hubs are simple hubs that
pass all traffic through; in particular, note what it says about
dual-speed (10Mb/100Mb) hubs, and make sure the PC, IP phone, and router
are all running at the same speed (all 10Mb/s or all 100Mb/s).