reply to mrjoshuaw
The modem is in bridge mode pulling 172.31.x.x so my ISP is definitely doing NAT - which pisses me off.
reply to MrMaster I recommend you talk to your ISP. I run a small hobby ISP and my customers get a public IP address if and only if they ask for one. Not everybody is as easy to work with as I am, but it doesn't hurt to ask. --db