disable MASQUERADE to pass assigned IP from OpenVPN

[rbelsch]

I have a security requirement that requires me to not masquerade the IP address assigned to the clients when they connect to the OpenVPN server. I have attempted to disable the Masquerade function in before.rules on ubuntu but once I do that I am unable to pass thru the OpenVPN server once connected. Client Connects to OpenVPN fine but unable to ping or ssh servers behind it.

Info:

OpenVPN Server has two interfaces:
Public - 10.20.30.40
Private - 10.30.30.50
Pool - 172.17.0.0

I have tried to follow some suggestions on the web to forward traffic thru OpenVPN but all fail. I'm wondering if there is anything Documented here in the Forums. I have been thru about 18 pages but have not found anything.