I have configured Astaro to route 192.168.10.0 255.255.255.0. through a VPN-tunnel. The remote party have multiple subnets that I also should reach. Any ideas how to do it?
Either add your routes to a script (create a file in /sbin/init.d/routes.local, permission root read only; do a Search on this board for further howtos) or make the networks contiguous (MUCH easier; go for that...)
You could set the VPN subnet to 192.168.0.0/255.255.0.0 and that would cover it. Other more specific subnets on other VPNs or static routes would still work.