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SI2000 Callisto821+ Router Users Guide 

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•  Use Subnet Configuration; there are two ways to specify a range of IP addresses. You can 

either  Use Subnet Mask (specify the subnet mask address of the IP address) or Use IP 
Address Range (specify the first and last IP address in the range). Click on the drop-down 
list and select a method. 

•  type in the IP Address that is visible outside the network 

•  Subnet Mask/IP Address 2; the value you specify here depends on the subnet configuration 

that you are using. If you chose Use Subnet Mask, type in the subnet mask of the IP 
address. If you chose Use IP Address Range, type in the last IP address in the range of 
addresses that make up the global address pool. 

4.  Once you have configured the table, click on Add global address pool. The table is refreshed and the 

global address pool is added to your NAT configuration. 

 

... To delete a global address pool, click on the Delete  hyperlink, then click on the Delete Global 
Address Pool button. 
 
These actions have the same effect as typing the following CLI commands: 
 

 

Click on Return to Interface List to display the Security Interface Configuration page. To create a 
reserved mapping, click on the Add Reserved Mapping hyperlink. 

Reserved mapping allows you to map an outside security interface or an  IP address from a global pool to an 
individual IP address inside the network. Mapping is based on transport type and port number. Before you 
can configure reserved mapping, you need to configure NAT. 

To set up a reserved mapping on your existing NAT enabled interfaces: 

1. From 

the 

NAT Security Interfaces table, click on the Advanced NAT Configuration hyperlink for the 

interface that you want to add reserved mapping to. The Advanced NAT Configuration page is 
displayed. 

2.  Click on the Add Reserved Mapping hyperlink. The following page is displayed: