Screaming Penguin

Subnet Mask Calculator

This part will calculate what subnet mask to use to get the required number of networks or nodes.You\'ll need to enter the network portion of a TCP/IP address and the required number of sub-networks or nodes. When you have entered these values, click on \'Calculate\' and it will list the network class (A, B or C), the number of sub-networks, the number of nodes per sub-network and the subnet mask to use. To get a listing of all the subnets, click on \'List Subnets\' and a new window will open with the listing. You can then print or save this list if required. (There is a bug in IE3.02 which causes an error message the first time you click the button. If you click the button again, the list will display properly.)

Notes:

The number of networks or nodes must be a multiple of 2. If you enter a value that is not a multiple, the calculator will round it up to the next higher one. If you enter a value in \'Required nodes\', the calculator will use this value to calculate everything. If you wish to base the calculations on the \'Required sub-networks\' you must enter a zero in the \'Required nodes\' field.

Network/Node Calculator

This part will calculate the network and node components of a TCP/IP address.You can manually enter a TCP/IP address and subnet mask, or you can click on the \'Load Data\' button to transfer the information from the Subnet Mask Calculator.

Notes:

When you use the \'Load Data\' feature, only the network component of the TCP/IP address is transferred