1: if device doesn't support multiple proxy IDs then use 0.0.0.0/0 from both side and control the VPN traffic using the routes pointing to the tunnel interfaces.
2: 10.x.x.x side you need to use MIP as it was working already. And another policy to allow traffic from 10.x.x.x to 172.x.x.x .
Thnx,
Vikas
2: 10.x.x.x side you need to use MIP as it was working already. And another policy to allow traffic from 10.x.x.x to 172.x.x.x .
Thnx,
Vikas