Creating The Demand Interface - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

Because the demand interface spoofs an up state, you can also create routes
to any of the networks connected through a dial-up interface. When the
ProCurve Secure Router detects traffic that must be routed through a demand
interface, it processes the extended ACL that has been applied to it to select
interesting traffic. If the traffic matches that ACL, the router attempts to
establish the dial-up connection.
After the physical connection is established, the ProCurve Secure Router uses
PPP as the Data Link Layer for the dial-up connection. To ensure that backup
connections are only established with authorized routers, you should config-
ure PPP authentication for the dial-up connection.
To configure the demand interface, complete the following steps:
1. Create a demand interface.
2. Configure an IP address for the demand interface.
3. Apply the ACL that defines the interesting traffic to the demand interface.
4. Specify whether the demand interface can originate a call, answer a call,
or both.
5. Create a resource pool.
6. Configure connect-sequence settings.
7. Configure timers, caller, and hold queue settings (optional).
8. Configure caller settings (optional).
You must complete steps 1-6. Steps 7-8 are optional.

Creating the Demand Interface

To create a demand interface and access the demand interface configuration
mode context, enter this global configuration mode command:
Syntax: interface demand <number>
Replace <number> with a number between 1 and 1024. Each demand inter-
face must have a unique number.
After you create the demand interface, its status automatically changes to
administratively up. You do not need to activate the interface by entering no
shutdown. The demand interface will begin spoofing an up status after you
configure an IP address for it.
Configuring Backup WAN Connections
Configuring Demand Routing for Backup Connections
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