What's My Subnet Mask. What is a subnet mask address? Routers accomplish this by assigning subnet masks, a number.

A subnet mask allows users to identify which part of an ip address is reserved for the network and which part is available for host use.

Ip address and subnet mask, how subnetting works, what ip mask means and more. What is a subnet mask address? Using an online subnet calculator like the spiceworks subnet calculator can quickly help. All valid subnet masks contain two parts: email protected asked 2 years ago. The subnet masks tab allows you to adjust or modify the subnet masks used by the sniffer pro expert. However, we recommend that the subnet bits be contiguous and located as the most significant bits of the local address. Subnetting can improve security and help to balance overall. How to use a subnet mask? All nodes (hosts) in a subnetwork see all packets transmitted by any node in a network. A naïve implementation of a routing table would list every possible ip address so that, given any ip address, you'd look up that exact one and get back the routing information² associated with it.