[Users] Create VLAN for WAN traffic

I'm not very knowledgeable in VLANs. Sorry for the lack of knowledge in advance. Is it possible to create a VLAN for WAN traffic, to separate it from the internal network? I'd imagine so. It was a automated and simple process when use XenServer. I'm trying to switch from Xen to oVirt and when trying to recreate this, I'm unable to ping out from the VM. This leads me to believe the VLAN was created incorrectly. I created ifcfg-br1 on the host and through the engine, created the logical network with VLAN tagging 20. Does the interface, ifcfg-br1, require a public IP, any IP address, no ip address? (Sorry, never created a VLAN for WAN traffic as it was automated in XenServer) From there I have the VM installed and configured with a public IP address, however, only get Destination Host Unreachable, meaning it has no route out. I am banging my head on the desk trying to figure this out. Can anyone give me any assistance? Thank you, Neil