local address

Definition of local address in The Network Encyclopedia.

What is Local Address?

The address that a computer on a TCP/IP network uses to access another computer on the same subnet of the network.

For example, consider a TCP/IP network with the following subnet scheme:

  • Network ID = 202.55.0.0
  • Subnet Mask = 255.255.240.0

Using this scheme, there are 14 possible subnets for the network:

  • Subnet 1 has hosts 202.55.16.1 through 202.55.31.254.
  • Subnet 2 has hosts 202.55.32.1 through 202.55.47.254.
  • Subnet 3 has hosts 202.55.48.1 through 202.55.63.254.
  • ...
  • Subnet 14 has hosts 202.55.224.1 through 202.55.239.254.

Now consider the following three hosts on the network:

  • Host A = 202.55.38.147
  • Host B = 202.55.44.12
  • Host C = 202.55.59.6

From the point of view of Host A, which is located on Subnet 2:

  • Host B is located on the local subnet (Subnet 2), so Host B’s address is local to Host A.
  • Host C is located on a remote subnet (Subnet 3), so Host C’s address is remote to Host A.