Cyclades-PR2000
An overview of the NAT menu is shown in the table below.
NAT Menu CONFIG =>SECURITY =>NAT
Menu Option | Description |
General | Parameters for enabling NAT and choosing the NAT Mode. Also includes port |
| translation option. |
Global Address | The first and last IP addresses in the range. In the example, these numbers are |
| 200.240.230.225 and 200.240.230.238. |
Local Address | The local network IP address and network mask, and whether or not the network should |
| be translated. In the example, these numbers are 192.168.0.0 and 255.255.255.0. |
Static Translation | Defines a static translation between a global IP address/port pair and a local IP |
| address/port pair. In the example, three such pairs are defined. |
Timeout | Definition of inactivity timeouts for UDP, DNS, and TCP dynamic NAT translations. |
STEP ONE
The first step in the configuration of NAT is to enable NAT and choose the NAT Mode (Normal or Extended). Only the extended mode is discussed in this chapter. The normal mode is a previous version of NAT maintained for backwards compatability. See chapter 4 of the CyROS Reference Guide for information about the Normal Mode.
NAT Menu CONFIG =>SECURITY =>NAT =>GENERAL
Menu Option | Description |
NAT Status | Enables NAT. |
NAT Mode | Provides a choice between the previous NAT version (the Normal Mode) and the new |
| Extended NAT version. |
Disable Port | Disables/enables NAT with port translation. If this parameter is changed while the router |
Translation | is in use, all the active translations are destroyed, and their entries are removed from the |
| translation table. |
Chapter 11 - NAT | 93 |
