RUT955 (he has sim-card with static ip 172.28.x.x, lan ip 10.24.y.y/24) is a reserve link to some devices on object. Server communicates with this devices through tcp on port number 80. So we use port forwarding on RUT955 (his static ip 172.28.x.x:81, :82 etc to devices). The main link goes through cisco asa 5506 (and some higher devices through fiber-optic), its should be default gateway (lan ip 10.24.y.y+1/24) for all lan devices. It has routes for mobile traffic trhough RUT955. Now because I can't find how to make default gateway on RUT955, traffic directly goes from RUT955 to devices. I want to pass all traffic from RUT955 through cisco. Try to use routes in RUT955, didnt wor out. There are 4 route tables and some zones, it's hard to understand with wiki info.
So, I need that all lan traffic from RUT goes through cisco. Some route like 0.0.0.0 0.0.0.0 (cisco ip).
Other modems, that I used (for example, conel er75, ur5, irz) all have this default gateway option.