David Nessen wrote:
>I am running ethereal on windows 2000 and when I start the capture, all packets into and out of my computer slow down tremendously. I can't access web sites or other computers on my LAN. My network becomes practically useless. I have to reboot my pc for things to go back to normal.
>
>Has anyone experienced anything like this while running ethereal? Is there a solution?
>
Are you capuring on PPP interface (e.g. dial-up)?
http://www.ethereal.com/faq.html#q5.18
WinPcap 2.3 has several known problems with PPP and PPP support is disabled completely in WinPcap 3.0
http://winpcap.polito.it/misc/changelog.htm
"due to the large number of messages reporting problems (blue screens) with VPNs, PPTP and such connections, we have disabled the support for NdisWan adapters. As a consequence, it is not possible to capture from PPP (neither NdisWanIp, nor NdisWanBh, nor NdisWanBfIn/Out...). At the moment we have no plans to fix the problem with VPNs, PPTP, PPP unless we get a generous sponsorship."
However there is a work-round that MAY work when using WinPcap 2.3.
http://winpcap.polito.it/misc/dialup.htm