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Configuring the security interfaces 123
Model 3086FR ATM IAD User Guide 10 • Security
The next step in configuring the Frame Relay to ATM Converter is adding the default gateway route. Since
the WAN IP address of the 3086FR modem at the CO site is 192.168.101.2, this will be the gateway for the
3086FR modem at the CPE site, the modem we are currently configuring.
1. Click on IP Routes under Configuration on the 3086FR modem’s Menu.
2. Click on Create a New IP Route.
3. Enter 192.168.101.2 in the box adjacent to Gateway.
4. Leave Destination and Netmask both as 0.0.0.0 because this is the gateway default route.
5. Click on Create and the route will be entered.
6. The default gateway can be verified by clicking on IP Routes under Status in the menu.
Configuring the security interfaces
The interfaces and routes have been configured on the 3086FR Frame Relay to ATM Converter which will
function as the firewall. The Ethernet side of the 3086FR will be configured to be an internal security interface
whereas the WAN side is configured as an external security interface since it is on “public” side of the modem
connection.
1. Click on Security under Configuration on the 3086FR modem’s menu.
2. Under Security Interfaces, click on Add Interface.
3. Select Name of the WAN port (ipoa-0) and Interface Type to be external. Click on Apply.