To analyze any traffic with a network Advisor I would advise the following:
1- Activate ETHEREAL when connected to a network see if you can get any traffic. Try pinging or get to a web page. If you do see traffic than the ETHEREAL is configured correctly and working. If not you must first check that WinCAP is installed and ETHEREAL is also installed correctly. Also check if any filter is active. Do not use any filter for a first checkup.
2- Assuming 1 shows that ETHEREAL installation is OK then connect you IP phone and the PC with ETHEREAL to a HUB. A HUB is network device that all ports can see all traffic. If the PC with EHEREAL is connected to a switch port and the IP phone is also connected to another port you cannot see any traffic to/from the IP phone.
In a switch if you want to see the traffic incoming and outgoing you should define the ETHEREAL port to morror the traffic on the port wher the OP phone is connected.
Not all the switches, especially the cheap ones, support that. Most Cisco and AVAYA switches support.
yodave@xxxxxxxxxxx wrote:
Are you on a shared segment? Are you using promiscuous capture
mode?
On 6 Aug 2004 at 16:32, Rafael Vizcarra wrote:
>
> I'm using the ethereal to analize the traffic on an IP phone, but i don't get any packet, what could
> be the problem?
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