hello i have configure router board 433 and i make ip to connect only one ip with 254 ip for example 192.168.1.1 and continue 192.168.1.2.192.168.1.3 and more,have any problem here?because i think for clients i have to create other ip for example 192.168.2.1.192.168.3.1 thanks for understanding my language 
Yes, to masquarade the ip addresses will have to be differrent. so if gateway is 192.168.1.1 client ip should be something like: 192.168.10.1 or 192.168.2.1