How to do a IP routing for cascade connection

[hkcsser]

I have done a Cascade Connection to let a VPN server connecting to another one.
I found that if I connect through the VPN server, the traffic will go through the cascade connection or the network from the VPN machine randomly.
Is there any method to set up a IP routing to specify different IP address of destination through different route?

Network Map:

-> network from the VPN machine
VPN server
-> cascade connection to another VPN machine

[thisjun]

There is virtual L3 switch function.
http://www.softether.org/4-docs/1-manua ... 3_Switches

[hkcsser]

thisjun wrote:
> There is virtual L3 switch function.
>
> http://www.softether.org/4-docs/1-manua ... 3_Switches

I cannot do that. Adding a virtual interface require to fill in the IP address, but Cascade Connection do not provide such information. How to do that?

[thisjun]

A virtual L3 switch requires an IP address for itself.
A cascade is unconcerned.