MikroTik

I currently have one mikrotik router and a radius manager and all is ok. I want to add two remote sites and have clients at each so i will have 3 sites all with wireless backhauls to each from the internet gateway where I want to have a RB750 (at the gateway) and have pppoe and hotspot running on all backhaul links and have the radius manager on one remote site since i cannot have it at the gateway with the RB750.

My question is can the router authenticate against the radius manager at the remote site not having to be connected directly to the internet gateway?

if router has access to the radius (even via Internet) - it can authenticate

plz tell me how do i procede?
i have hardware to use if you need me to built a server or whatever it need to be done.

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i need a step by step , how can it be done!

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what?.. what can be done?..

Thanks. That solves my problem.