As Nathan mentions, use the tracert option in Windows to trace the route (and router hops). Ideally do that from the computer at 206.208.156.179 or as he says, from a computer in that same range. Don't use a computer in the same range as the SLC though as you won't see any hops.
Look at the IP configuration of the SLC and verify what the "gateway" address has been configured as. That gateway (router) is where the SLC hops onto the network.
OG