[hansc]

Such a great tool and 100% free. Use it often to debug network issues and see where devices connect to. Like someone else said: a multimeter for networks.

Also used it to learn about WiFi connection setup with acces point. Can see all the beacon packets and WiFi packets

[martyvis]

I was a very early adopter of Ethereal. My team had a Sniffer PC, but either it was being used by someone else or it didn't adequately decode protocols.