My ISP has assigned me an IP address of ***.***.9.3 My Subnet mask is 255.255.255.192. How do I know what IP addresses I can use on my network? Or, do I have to use the IP addresses that my Router recommends (192.168.1.1 - 192.168.1.254) (* =left out numbers for security).

I think you are confusing your IP's. You have an internal(LAN) IP and an external (Internet). They do not have to coincide with each other.

1. If his network accesses the internet he has to stick to the IP scope given to him. 2. If your network address is represented by the **** in your post, you're using the wrong subnet mask. 3. Did you apply for a range of network addresses? OR Is one computer connected to the network, and that computer is the Proxy for the others to get on the internet. If you're using one computer to access the internet, and its being used as the proxy, the others machines can have any number. BUT if each of your machines is connecting to the internet directly, you need to have applied for a scope of network addresses.

If you have a router, you can assign DHCP addresses dynamically with DHCP software installed on the router. Make sure that the router has the address xxx.xxx.9.3, and that all machines behind the router have the same subnet mask. You can assign internal addresses of 192.168.xxx.xxx on ANY internal network, with the router as the gateway, and are limited to 256 (0->255) nodes using this type of network. Email me for more info.

If you are confused about this call your ISP, they will know how to help you. Did you ask for a range of IP's or for a single IP. What you have presently is a subnetted address that can only use up to 62 addresses, not the ususal 254. Since they started you off with 3 in the last octet I wouldn't be surprised if they only assigned you just that one address. You could use a proxy server between your network and the internet, that way you only need one valid IP to get out and whatever you want inside. But like I said, contact your IPS support for best help.