# Add point-to-point protocol clients to Single Firewall interfaces

You can use PPPoE or PPPoA clients to connect the Firewall to an external ADSL modem without configuring routing and NAT settings on the ADSL modem.

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Point-to-point protocol over Ethernet (PPPoE) and point-to-point protocol over ATM (PPPoA) clients on the Firewall simplify the installation of an appliance when PPPoE or PPPoA is used by the network link connected to the interface. Activating the PPPoE or PPPoA client on the Firewall allows you to connect the Firewall to an external ADSL modem in transparent bridge mode. You must also activate the PPPoE or PPPoA client on the Firewall if you have a specific appliance that has an ADSL port and the ISP for the ADSL connection requires PPPoE or PPPoA. The PPPoE client is supported only for dynamic IPv4 addresses on Single Firewalls.

For more details about the product and how to configure features, click Help or press F1.

## Steps

1. In the IP Address properties, click PPP Settings.
2. Configure the settings, then click OK.
   If you do not have the PPP details, contact your service provider.
3. Click OK to close the IP Address Properties dialog box.
4. If you are creating a Firewall, or if you want to change the roles the different interfaces have in the configuration, select system communication roles for firewall interfaces.
5. Otherwise, click Save and Refresh.

## PPP Settings dialog box

Use this dialog box to configure Point-to-Point Protocol (PPP) client settings.

Option | Definition
--- | ---
Mode | Specify the mode that the ADSL modem connected to the interface supports: Off — PPP is not used. PPPoE — Use with physical, VLAN, or ADSL interfaces. PPPoA — Use only with ADSL interfaces.
User Name | Enter the user name according to the PPPoE or PPPoA configuration.
Password | Enter the password according to the PPPoE or PPPoA configuration. By default, passwords and keys are not shown in plain text. To show the password or key, deselect the Hide option.
Service Name (Optional) | Enter the service name according to the PPPoE or PPPoA configuration.