tethereal capture filter??
hi everyone! first post here. anyways, i work for a medium size isp, and i need to smiff the network occasionally for traffic that would do harm to our netowork. i understand that i will not catch everything, but i have 2 questions.
question 1 - i need to filter out traffic that would do harm to our ethernet network. broadcast traffic is definitely something to look at. but what else would i look for?
question 2-after i know what kind of traffic i need to sniff, how do i create the filter? can u give an example in tethereal string.