Misadventures with tcpdump Filters
For quite some time I’ve been running into a tricksome situation with tcpdump. I discovered the problem is entirely to do with 802.1q tagged packets. Since this pcap was taken from a mirrored port of a switch using VLANs it follows all the same rules as a trunked interface.
Mon Sep 3 11:44:29 2012 - permalink -