Different VLAN Creations

[paffendorf]

Dear friends,

I'm pretty confused about the creation of VLANs. I'm creating a VLAN for PPPoE. I have seen that you can create it in different ways and assign the interface to it in different ways too.

• I have created a VLAN in the VLANS tab (e.g. 6) for the em0 interface

Case 1

• I have created in the PPPoE tab a new interface assigning it directly to the em0
• In the Interface mapping tab I have selected VLAN 6 in em0

Case 2

• I have created in the PPPoE tab a new interface assigning it directly to em0.6
• In the Interface mapping tab I have selected em0.6

My questions are:

• What is the difference between creating PPPoE as em0 or em0.6?

• What is the difference between assigning the interface to the VLAN 6 in em0 or directly to em0.6?

Thank you very much