Skip to content
  • There are no suggestions because the search field is empty.

NAT Terminology

When using NAT on Cisco devices, translated addresses are categorized into two types based on the classification used. The first classification divides the addresses based on where they exist in the network, and they are:

  • Inside addresses: These are the addresses belonging to the network in question, the private IPs used for local communications, and public IPs for internet connectivity.
  • Outside addresses: These are the addresses external to the network in question, such as addresses of devices on the internet or other enterprises to which data is sent.

The second classification complements the first one and divides the addresses based on where the addresses are seen, and they are:

  • Local addresses: Addresses intended to be used between devices in the local network, such as private addresses.
  • Global addresses: Addresses intended to be used on the public internet. Usually, after a NAT translation, these public addresses allow communication on the internet.