What is a Class B subnet?
A class B subnet uses the first and second octets of an IP address to designate the network ID, and the remaining two octets for the designation of the Host ID.
Host ID | | | | ip address xxx.xxx.xxx.xxx | / | / Network ID
The first two bits of the first octet are always set to one zero, 10 to indicate a Class B address. This leaves 14 bits to represent the Network ID giving a possible 16,384 network addresses.
The remaining 16 bits are available to designate the host ID, this provides for 65,534 or (216)-2 hosts per network.
Gordano software assumes that you are using a Class C subnet mask for local mail authentication. If you are using a Class B subnet, you will need to alter the local IP settings appropriately.
Keywords:IP address subnet class