I'm aware that public IP is used to connect to the internet world and private IP are used within our local LAN so that its protected from external world.
I have 3 systems in LAN, as I want to use for internal purpose I should use private IP, but as i took internet connection he has given me IP and I m using those. (They are class c Private IP's. Can I use class A private IP's.)
Also Iwan to know what the other attributes are Subnet mask, Default Gate way, Preferred DNS, Alternate DNS