Thanks vmiller,so my configure should be like that:int g0/1ip add 172.168.1.1 255.255.255.240     (This the range as an example have 8 IP) ip nat outsideint g0/0ip add 192.168.1.1 255.255.255.0ip nat insideip nat inside source list 1 interface g0/1 o...

i have 8 ip from ISP in the same subnnet and i have a 1941 cisco router where G0/1 it will configure as Outside and G0/0 Inside... and the inside ip  address will be 192.168.1.0 / 24..... i want to make the local network go to the internet and let th...