Originally Posted by
Paint Horse
Yes, I see the traffic from the only VLAN I have setup, VLAN 2. I have two devices in that VLAN. While pinging between the two I see the requests and replies. In these frames I see all the fields in all the headers, except for the added VLAN tags.
Originally Posted by
docbert
So you're seeing un-tagged VLAN 2 traffic?
Are you sure that you're watching the correct port? It's very uncommon to have both tagged and untagged traffic on the same interface (With some switches it's impossible. With others it is possible, but it's never recommended)
Feel's very weird posting about VLANs on FT, but here goes
the NATIVE VLAN on a given trunk is NOT tagged. if you are SURE that you are connected to a trunk port, but you are seeing the traffic you want to monitor in an untagged format, try chaninging the native vlan on the trunk to something other than 2. (this is assuming the trunk port format is 802.1q but IMO the NIC card won't support any other tagging format in any case)
i.e. it is
possible that the reason you cannot see the vlan tags on this particular trunk are because there are none to see on vlan 2.
It is obviously also crucial to
confirm that the switch port to which you are connected is actually functioning or
operating in a 'trunk' mode and not just configured to do so.