Chapter 2 Cisco SDM Express Edit Mode

NAT

Unable to configure Firewall Window

If SDM Express is unable to let you configure a firewall, the Unable to configure Firewall window is displayed. The following are reasons why you may not be able to configure a firewall:

The router is a fixed-port router and there is not exactly one LAN and one WAN interface configured.

The router is a modular router, or there are more than two interfaces configured.

A firewall and/or access control lists have been applied to your router using other tools.

Refresh Button

This button is visible if you editing an initial configuration. Click

Cisco SDM Express Buttons for more information.

NAT

If devices on the LAN have private addresses, you can allow them to share a single public IP address by using Network Address Translation (NAT). NAT uses port numbers to identify hosts, and the host services that you want to make available.

Click Enable NAT to use NAT on the router.

Unable to Configure NAT

If you are in SDM Express edit-mode, this window appears when SDM Express is not able to help you configure NAT. SDM Express may not be able to help you configure NAT for the following reasons.

The router is a fixed-port router and there is not exactly one LAN and one WAN interface configured.

The router is a modular router, or there are more than two interfaces configured.

NAT is already configured on an interface.

 

 

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321 Studios OL-7141-04 manual Unable to configure Firewall Window, Unable to Configure NAT