EOIP over SSTP

Hi guys, is it possible to create a EOIP tunnel over a global router?
I have 3 routers: 2 as sstp clients, and 1 os a sstp server. Both clients connect to the base server and all communication works. I would like to create 2 EOIP tunnels from clients to server and move ARP broadcasts from one client to second client. Is it possible? After simple creating the tunnels it didn’t work. Did anybody do something like that?
Thanks in advance for help.