Re: Sniffing out a firewall problem.

[Rick Murphy <rmurphy () mitretek org>]

At 09:46 AM 10/31/2001 -0800, Alan Young wrote:
> Hi All
> We have been experiencing a firewall failure due to a NIC card that is
> apparently chattering and creating an extremely high number of excessive
> collisions.
>
> What is the best way to debug this?
> We need to install a sniffer program on a PC somewhere, right?
> I have checked and sniffer software appears to be very expensive?

Well, I'd start with tcpdump on a random UNIX clone PC. Ethereal is another 
good choice.

> Is there freeware that is available for Win32?
Both are available for win32 - www.tcpdump.org and www.ethereal.com
        -Rick


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