(And to restate - I can get this to work with BFGminer, I am trying to figure out mining_proxy.)
Any ideas? Thanks.
Your Gateway is blank....Needs to be your router IP address....
Actually, you don't need a gateway address nor DNS as your connecting to a proxy on the same layer 2 network. The problem is your cube was on 8330; when the default is 8332 - when you added "-gp 8330" this changed the proxy listening port to 8330, and thus enabled you to connect.