Adtran 612 User Manual

Total Access 600 Series System Manual

Section 4  User Interface Guide

61200624L1-1B

© 2004 ADTRAN, Inc.

179

To illustrate the use of NAT, consider the example from Appendix B. RFC1483 Quick Start (IP Routing) 
on page 174. To add NAT to the IP routing example, use the 

 menus.

For more details on the configuration parameters discussed in this section, refer to the following pages:

 

The NAT menu is found under R

 > NAT. The NAT menu can easily be accessed by pressing 

<CTRL+N>.

From the NAT menu, set P

 to E

. (This will enable 

translation and populate the corresponding NAT menu options.)

Set P

 to either I

 or S

.

• I

 (default) configures NAT to use the IP address already 

assigned to the interface. (In other words, the interface address and the 
NAPT address are the same.)

• S

 allows you to define a different IP address for the NAPT 

address (public address for private addresses to be translated into).

For basic NAT, this is all of the configuration that needs to be done. For 
specific port translations or 1:1 mapping, you can enter T

.

From the T

 menu, create a new entry by using the right 

arrow to enter the table. Additional entries can be created by highlighting the 
first entry index number and pressing the <I> key. Entries can be deleted by 
highlighting the selected entry index number and pressing the <D> key.

Create specific NAT translations based on your application.

Use the configured interface IP address as the NAPT 

address or use 

to set a different public 

address to be used for the translation.

Protocol for this translation. (TCP, UCP, ICMP, TCP or 
UDP, TCP UDP or ICMP, All, Specified, and NONE.)

 or 

. Choosing 

brings up the 

 option.

 or 

. If set to 

, this will translate the body of 

the data packet and replace the private address with 
the NAPT address. Default is 

, which is used for 

most applications.