multiple RADIUS

hi all

please i need your help
i have MIKROTIK and i need to active two RADIUS at the same time and each RADIUS has its clients, how can i do that ?

If you can use different SSID’s for those 2 groups of clients: It’s simple then: one RADIUS per SSID
Klembord-3.jpg
I removed the MAC from the “Called ID format”.
Klembord-4.jpg

thank you for your replay
i am connecting the mikrotik with 2 outside RADIUSs in a server
the upper RADIUS is the one that works and the lower does not work until i place it up
radius.JPG

The selection of the RADIUS server in my case is based on the “called id”. Is there a way to specify this “called id” with your ppp/hotspot services?
But maybe “Domain” could also be used as differentiator between the 2 radius servers. I have no experience with this.

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also works in v7
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https://help.mikrotik.com/docs/display/ROS/WifiWave2#WifiWave2-AAAproperties
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called-format (format-string)
Format for the value of the Called-Station-Id RADIUS attribute, in AP’s messages to RADIUS servers. Default: II-II-II-II-II-II:S
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mtik-called-id-cfg.png
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… and if you don’t use the exact syntax … you may end up here:
( unnecessarily : | )
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####    Filter Called-Station-ID

filter_calledstationid {
  if (&Called-Station-Id) {
   if (&Called-Station-Id =~ /(.+)\:ssid-name-a$/) {
        update control {
            Proxy-To-Realm := 'fac.net'
        }
    }
   if (&Called-Station-Id =~ /(.+)\:ssid-name-b$/) {
        update control {
            Proxy-To-Realm := 'ubi.net'
        }
   }
  }
  else {
  noop
  }
 }
####

AAA properties
Properties in this category configure an access point’s interaction with AAA (RADIUS) servers.

Certain parameters in the table below take format-string as their value. In a format-string, certain characters are interpreted in the following way:

a Hexadecimal character making up the MAC address of the client device in lower case
A Hexadecimal character making up the MAC address of the client device in upper case
i Hexadecimal character making up the MAC address of the AP’s interface in lower case
I (capital ‘i’) Hexadecimal character making up the MAC address of the AP’s interface in upper case
N The entire name of the AP’s interface (e.g. ‘wifi1’)
S The entire SSID
All other characters are used without interpreting them in any way. For examples, see default values.

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still struggeling
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All other characters are used without interpreting them in any way.
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what does it mean ??
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For examples, see default values. ??
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can I use: “08-A9-8A-II-II-II:myrealssid” ?
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All other characters are used without interpreting them in any way. … used without interpreting … is this a wildcard … or bananas ?