Identify the basic operation of NAT
Explain the basic operation of NAT
Similar to Classless Inter-Domain Routing (CIDR), the original intention for NAT was to slow
the depletion of available IP address space by allowing many private IP addresses to be
represented by some smaller number of public IP addresses.
Since then, it’s been discovered that NAT is also a useful tool for network migrations and
mergers, server load sharing, and creating “virtual servers.”
At times, NAT really decreases the overwhelming amount of public IP addresses required in
your networking environment. And NAT comes in really handy when two companies that have
duplicate internal addressing schemes merge. NAT is also great to have around when an
organization changes its Internet service provider (ISP) and the networking manager doesn’t
want the hassle of changing the internal address scheme.