Firewall as external relay

Hi,

Is it possible to route an incoming external connection to an external address?

I have a VPS that needs to connect to a service on port 82 somewhere on the internet.
The only problem is that only my home ip is allowed to that service.

I know I kan fix this using a VPN tunnel, but it would be alot easier if I could pipe/proxy this connection through my firewall using nat or someting. Is this possible?

The router I’m using is a RB2011.