VPN - NAT Router Setup P2P

I am having trouble setting up EasyVPN with my router and P2P Vuze Application.

Vuze Incoming TCP and UDP Listen Port: 32000

Router Port Forwarding: 192.168.1.2:32000 (OK - Works Fine)

VPN IP: 1.2.333.444

I’ve tried binding Vuze to VPN IP:1.2.333.444 but it returns a NAT error connection timed out, Public IP:Port (6.3.212.300:32000).

How do I configure VPN with my router?

Pulic IP: 6.3.212.300
Private IP: 192.168.1.2
VPN IP: 1.2.333.444

Thanks