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Cisco Router and Security Device Manager Version 2.2 User’s Guide
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Chapter18 Network Addres s Translation
Network Address Translation Rules
Note If you do not enter a network mask in the Translate from Interface
area, SDM will perform only one translation.

Redirect Port

Check this box if you want to include port information f or the outside device in
the translation. This enables you to use extended static translation and to use the
same public IP address for multiple devices, as long as the port specified for each
device is different.
Click TCP if this is a TCP port number; click UDP if it is a UDP port number.
Original Port. Enter the port number on the outside device.
Trans late d Po rt. Enter the port number that th e router is to use for this
translation.
Configuration Scenarios
Click Static Address Translation Scenarios for examples that illustrate how the
fields in this window are used.
Add or Edit Dynamic Address Translation Rule: Inside to Outside
Use this help topic when you have chosen direction From Ins ide to Outside in
the Add or the Edit Dynamic Address Translation Rule window.
Add or edit an address translation rule in this window. If you are editing a rule,
the rule type, static or dynamic, and the direction are disabled. If you need to
change these settings, delete the rule, and recreate it using the settings you want.
A dynamic address translation rule dynamically maps hosts to addresses, using
addresses included in a pool of addresses that are globally unique in the
destination network. The pool is defined by specifying a range of addresses and
giving the range a unique name. The configured router uses t he available
addresses in the pool (those not used for static translations or for its own WAN IP
address) for connections to the Internet or other outside network. When an address
is no longer in use, it is returned to the address pool to be dynamically assigned
to another device later.