Re: VLAN inside VXLAN with 6.2.3
All right. It works now after I moved one side to FG60E. Since I reconfigured FG30E side from scratch, I don't know what I misconfigured. But likely I put the parent vxlan interface into the soft-switch interface while I was supposed to put the vlan sub-interface into it, or something like that kind of a simple mistake or two...
I'm using multivdom environment on one side and two physical switches (Cisco and Juniper) are involved to convert untagged to/from tagged on both sides, it complicated the cabling too, which might have confused myself.
I was surprised to see only internal (overlay) packets when I sniffed on the tagged vxlan sub-interface. But this might make sense if the outer (underlay) UDP header is added/stripped in-between the vxlan sub-interface and the physical ougoing port.
I'll proceed to "VLAN inside VXLAN over IPSec" like tanr has been planning.