what's 10.0.0.33?
in your diagram, you mean 10.20.0.0/24 is behind the vpn peer?
how the router 10.0.0.3 reaches to its vpn peer?
in your approach #1, which router interface are you talking about? 10.0.0.3?
in your approach #2, you mean qg-XXX of the router 10.0.0.3? from the diagram it isn't clear to me how the gateway port is set up.
what's 10.0.0.33?
in your diagram, you mean 10.20.0.0/24 is behind the vpn peer?
how the router 10.0.0.3 reaches to its vpn peer?
in your approach #1, which router interface are you talking about? 10.0.0.3?
in your approach #2, you mean qg-XXX of the router 10.0.0.3? from the diagram it isn't clear to me how the gateway port is set up.