Creating a VPN, do I need to add a route to reach my local peer IP?

I wrote policies on the Juniper, so it tunnels certain subnets - that's typically how I do it on the Juniper's.

The VPN says "Route Based" on the Azure side though.   So I guess it depends who you ask. :)

What I'm looking for is there must be some configuration in the VPN (I haven't seen it) - that tells me which subnets it can route to and which it can't.  How do I know what Subnets the GateWay subnet has access to (perhaps I'd want to limit this)?  Or perhaps it's anything in the VNET that the VPN exists in.   That's what I'm suspecting.

In which case, I'd obviously need to write a policy on my Juniper side to handle those various subnets.

Thanks Kent