Having multiple networks inside the same vApp is not straightforward, at least not if it comes to easy-to-connect ability.
We need a VM template that we can add multiple times to build the vApp.
If you want to follow my instructions to build your own router, you will need a virtual router and you need to know how to configure it. If you would like to use my example, have a closer look at the There's more... section of this recipe.
Let's work through the two different options we have.
Perform the following steps for using the vApp router:
App Net, and assign it a 192.168.2.0/24 network with an IP Pool.