Configure a demand-dial interface for a temporary link to the ISP

Open Routing and Remote Access, right-click Network Interfaces, click New Demand-dial Interface, and then complete the wizard pages for the Demand-Dial Interface Wizard as shown in Table 10.15.

Interface Name:

                         Type an appropriate name, such as Dial_ISP.

Connection Type:

                         Choose one of the following alternative options:

Select Connect using a modem, ISDN adapter, or other physical device. Select this option to create a dial-up link to your local ISP.

• On the Select a device screen, select the modem or adapter that this interface will use from the prepopulated list.
• On the Phone Number screen, type the phone number of your local ISP.

-or-

Select Connect using PPP over Ethernet (PPPoE). Select this option to create a PPPoE link to your local ISP.

• On the Service Name screen, type the name of the service in the text box provided. (If you leave this text box blank, Windows will automatically detect and configure your service when you connect.)

Do not select the third option, Connect using virtual private networking (VPN), because this demand-dial interface is for the link to the ISP, not for a VPN tunnel.

Protocols and Security:

                     Select Route IP packets on this interface (do not select Add a user account so a remote router can dial in).

Static Routes for Remote Networks:

To add a static host route for the IP address allocated to the answering router by the answering router’s ISP (or by InterNIC):

• Destination — Type the IP address of the answering router’s Internet-connected interface.
• Network Mask — Type 255.255.255.255
• Metric — Select an appropriate number for the metric.

Dial-In Credentials:

                        This page does not appear.

Dial-Out Credentials:

                     Specify the dial-out credentials that this interface will use to connect to the local ISP:

• User name — Type the name of the user account that has permission to access the local ISP (this is not the router user account).
• Domain — leave this field blank.
• Password and Confirm password — Type the password.

Note. Open Active Directory Users and Computers, and then, on the Dial-in tab of the user object’s Properties page for the user account that has permission to access the local ISP, select Allow access.