I got an answer from Dell technical support, on how to Do it: 1.       If tagging through ISP is different than DOT1Q then you need to change it on both switches by using global command dvlan-tunnel ethertype and options there are (dot1q, vman or custom) 2.       Port 1 and 2 should be trunk port that accept only VLAN 3000. These are ports that are connected to the ISP. 3.       Ports 3 and 4 should have mode dvlan-tunnel configured on them and configured as switchport mode access in VLAN 3000. These are the ports that are connected to the switches that are for production in both sites. 4.       Ports 5 and 6 on other switches should be configured as trunk with tagged VLANs you want to transfer across ISP in VLAN 3000. These are the ports that are on the production switches. Topology is here: www.upload.ee/.../Topology-change.png I hope that now everyone will get how it works:) Thanks for the help.
I have two different sites, one is our datacenter and the other is our office. I want to be able to get access to the datacenter network from the office, I need the access for 2 vlan`s, the ISP has already setup he`s end for this and now there only the configuring part :emotion-1: In the office there is a PC5548 and in the datacenter there is a PC6224. The office config on the incoming port is:  interface tengigabitethernet1/0/1 switchport mode trunk The datacenter outgoing port conf is: interface ethernet 1/g22description "TELEV6RK"switchport mode generalswitchport general allowed vlan add 3000mode dvlan-tunnel  That doesnt work, how should I configure the ports, should I configure all the ports or only the 1 port on 5548 and 1 port on 6224?
Dell Powerconnect 6224 DVLAN-Tunnelling (Q in Q)