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Unable to see VLAN tags using Intel 82579LM


Hi all

My system configuration as follows

PC OS windows 7 ent. 64 bit

Switch config

monitor session x source interface Gi 0/x

monitor session x destination interface fa0/x encapsulation dot1q

registry monitormode is 1 i seen vlan information but only STP packet

registry monitormode is 0 i dont see vlan information only tcp/ip and more l2 information MAC etc

check the Print Secreen on attached Pls What is your sugesstion, could you help me pls ? Thank you in advance

Monitor mode 1 alt text

Monitor mode 0 alt text

Registry alt text

asked 05 Feb '14, 00:30

alibaltr's gravatar image

accept rate: 0%

converted to question 05 Feb '14, 02:45

grahamb's gravatar image

grahamb ♦

One Answer:


See my answer to a similar question.

additionally: please search the site for 82579.

BTW: Are you sure your monitored port (Gi 0/x) has vlan tags enabled/configured?


answered 05 Feb '14, 02:56

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
accept rate: 15%

edited 05 Feb '14, 03:04