Show VLAN Header with TCPDump

Posted on April 02, 2015 in network, analysis, tcpdump, vlan

Type this command. The -e option give VLAN information :

tcpdump -n -i eth4  host 10.10.10.10 -e

Results :

16:42:04.659324 00:50:56:10:15:20 > 00:50:56:10:15:21, ethertype 802.1Q (0x8100), length 332: vlan 15, p 0, ethertype IPv4, 10.10.10.10.8043 > 10.10.20.10.80: TCP, length: 287