Network Address Translation; Network Address Translation Wizards - Cisco OL-4015-08 User Manual

Network Address Translation Wizards

OL-4015-08

Network Address Translation

Network Address Translation (NAT) is a robust form of address translation that
extends addressing capabilities by providing both static address translations and
dynamic address translations. NAT allows a host that does not have a valid
registered IP address to communicate with other hosts through the Internet. The
hosts may be using private addresses or addresses assigned to another
organization; in either case, NAT allows these addresses that are not
Internet-ready to continue to be used but still allow communication with hosts
across the Internet.
You can use a wizard to guide you in creating a Network Address Translation
(NAT) rule. Choose one of the following wizards:
Basic NAT
•
Choose the Basic NAT wizard if you want to connect your network to the
outside, or the Internet, and your network has hosts but no servers. Look at
the example diagram that appears to the right when you choose Basic NAT. If
your network is made up only of PCs that require access to the Internet,
choose Basic NAT and click the Launch button.
Advanced NAT
•
Choose the Advanced NAT wizard if you want to connect your network to the
outside, or the Internet, and your network has hosts and servers, and the
servers must be accessible to outside hosts (hosts on the Internet). Look at the
example diagram that appears to the right when you choose Advanced NAT.
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