full permition between 2 range ip address

hi everyone

i have a big network
this network have about 600 user
i need all device can send and receive between their
how can i connect between 2 or 3 range ip address?

thanks and sorry for my bad english :smiley:

please help me
no one is here???

You can bridge those networks or setup routing.

http://wiki.mikrotik.com/wiki/Bridge
http://wiki.mikrotik.com/wiki/Testwiki/IP_routing