how to provide different ip on pppoe for each connect

i’ve successfully set up a pppoe-server and everything works fine, except the ip distibution. Everytime I connect to the server i get the same ip from the defined pool (10.1.1.1-10.1.1.200). My special wish is now, that i get a different ip each time i connect to the server

I don’t believe you can do this as pool allocations are ‘sticky’ - for any particular MAC address and username combination the previously used IP is issued when reconnecting. Only a reboot, no free pool addresses (which forces a cleanup), or not being used for some time resets this behaviour.