MPLS T1 from ISP. /30 handoff to our Adtran 3200 router/FW unit. Adtran has 2 VLANs passed to it (from the LAN/internal side) that it routes between as well as allowing them both to pass up the T1.

I wasn't sure where to post this, as it pertains to networking, but also to connecting two environments over this WAN link, potentially setting up trusts in AD, and other pieces, so I thought I'd post ...