To configure static one-to-one NAT on a 7705 SAR base routing instance or VPRN routing instance

Purpose

Perform this procedure to configure static one-to-one NAT on a 7705 SAR base or VPRN routing instance.

Steps
 
1 

Perform one of the following:

  1. To configure static one-to-one NAT on a base routing instance, in the navigation tree Routing view, expand Network→NE→Routing Instance. Right-click on a routing instance icon and choose Properties. The Routing Instance (Edit) form opens.

  2. To configure static one-to-one NAT on a VPRN routing instance, choose Manage→Service→Services from the NFM-P main menu. The Manage Services form opens. Choose a VPRN service and click Properties. The VPRN Service (Edit) form opens. On the service navigation tree, expand the Sites icon. Right-click on a routing instance icon and choose Properties. The Routing Instance (Edit) form opens.

2 

Click on the Static NAT tab, and then on the General subtab.

3 

Enable the Enable Static NAT parameter.

4 

Configure the Drop Packets without NAT parameter, as required.

This parameter configures the router to drop packets that are traveling from either an inside network to an outside network or an outside network to an inside network that do not have a NAT mapping entry. By default, packets traveling from either an inside network to an outside network or an outside network to an inside network are forwarded whether or not there is a NAT mapping entry.

5 

Click on the Inside Map subtab and click Create. The Static NAT Inside Map (Create) form opens.

6 

Configure the required parameters.

The Inside Map maps a range of inside source IP addresses that will undergo NAT to a specified outside IP address range. The 7705 SAR will sequentially map each inside source IP address to its corresponding outside IP address.

7 

Save your changes and close the form.

8 

Perform one of the following:

  1. Navigate to the IES L3 Access Interface Properties form, General tab, and enable the Enable Static NAT Inside parameter.

  2. Navigate to the VPRN L3 Access Interface Properties form, General tab and enable the Enable Static NAT Inside parameter.

  3. Navigate to the VPRN Tunnel Interface Properties form, General tab and enable the Enable Static NAT Inside parameter.

9 

Save your changes and close the form.

End of steps