IPSec Side-to-Side with Multiple Routen

RouterOS General
1

Hi,
im currently configure multiple ipsec side-to-side connections. To get it working you need to configure in the ipsec policy the local (src.address) subnet. That works pretty fine if i have only one subnet on central station. But if i have multiple subnets on the central side i need to configure for each an seperated policy. But thats not supported from my clients.
So is there any other way to get that working?

Thanks in advance

2

An obvious alternative is some kind of tunneling protocol (like GRE) over IPsec.
But I still usually prefer to use pure policy-based IPsec whenever possible. What kind of software/hardware do your clients use?