What is subnet Masking?
You’re sort of there. All IP networks have a mask. In a non subnetted network, the mask ends in zeroes. For example, a Class C that’s not broken up has a mask of 255.255.255.0. The mask is designed to determine whether or not the source and destination IP addresses of packets are on the same or different networks. If you change the trailing octets of the subnet mask (based on the class of the IP network), you can reduce the number of hosts on a network and “split” the network up into smaller segments. One of the advantages of this is segregating segments of a network from one another. Another advantage is if you have a class C (255 addresses), and you need to share them among multiple sites, you can subnet them into smaller networks and assign each subnet to a different site. The mask simply helps determine which subnet and if another host is on that same network. The subnet has nothing to do with how the proxy works. The proxy has to know the source (requesting address) no matter wher
