3. Refer to the following information as displayed within the Static Translation tab.
Type | Displays the NAT type as either: | |
| • | Inside - The set of networks that are subject to translation. These are the internal |
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| addresses you are trying to prevent from being exposed to the outside world. |
| • | Outside - All other addresses. Usually these are valid addresses located on the Internet. |
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| Outside addresses pose no risk if exposed over a publicly accessible network. |
Direction | Displays the Direction as either: | |
| • | Source - The inside network is transmitting data over the network its intended |
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| destination. On the way out, the source IP address is changed in the header and replaced |
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| by the (public) IP address. |
| • | Destination - Packets passing through the NAT on the way back to the switch managed |
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| LAN are searched against to the records kept by the NAT engine. There the destination IP |
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| address is changed back to the specific internal private class IP address in order to reach |
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| the LAN over the switch managed network. |
Protocol | Displays the tcp or udp option selected for use with the static translation. | |
Local Address | Displays the Local Address used at the local (source) end of the static NAT configuration. | |
| This address (once translated) will not be exposed to the outside world when the translation | |
| address is used to interact with the remote destination. | |
Local Port | Applies NAT on packets matching the specified port number. The port number matched can | |
| be either source or destination based on the direction specified. This option is valid only if | |
| the direction specified is destination. | |
Global Address | Modifies the IP address of the matching packet to the specified value. The IP address to be | |
| modified can be either source or destination based on the direction specified. | |
Global Port | Modifies the port number of the matching packet to the specified value. This option is valid | |
| only if the direction specified is destination. | |
4.Select an existing NAT configuration and click the Edit button to display screen used to modify the settings of this existing NAT configuration. The fields within the Edit screen are similar to those displayed when adding a new NAT configuration.
5.Select an existing NAT configuration and click the Delete button to remove it from the list of available configurations displayed.
6.Click the Add button to display screen to create a new NAT configuration and add it to the list of available configurations. For more information, see Adding a New Dynamic NAT Configuration on page
6.6.2.1Adding a New Static NAT Configuration
If the existing NAT configurations displayed with the Configuration prove unsuitable for translation, consider creating a new one.
To define a new NAT configuration:
1.Select Security > NAT from the main menu tree.
