I have to connect 9 sites of a bank with their HQ (using point to point). I am using Cisco routers to connect. The bank is using both IP & IPX. What is the solution for ipx routing ?

1) I tried to use secondary using which I can encapsulate only 5 types; so 4 sites cannot be connected
2) Can I use subinterfaces with same encapsulation ?

Hope somebody will get back to me...

Thanks & Regards