Configuring Basic Settings For Ddr; Configuring Physical Interfaces; Configuring Link Layer/Network/Routing Protocols On The Dialup Interface - HP MSR Router Series Wan Access Configuration Manual

Tasks at a glance
(Required.)
•
Creating a dynamic route backup group
•
Assigning a dialup interface to a dynamic route backup group
•
Setting the delay for disconnecting a backup link
•
Setting the warm-up timer for dynamic route backup
(Optional.)

Configuring basic settings for DDR

Configuring physical interfaces

The router uses ISDN BRI and ISDN PRI interfaces to connect an ISDN network. It uses asynchronous
serial interfaces, synchronous/asynchronous serial interfaces, AM interfaces, and AUX interfaces to
connect a PSTN network. For information about configuring these physical interfaces, see Interface
Configuration Guide.
When you configure a synchronous/asynchronous serial interface, follow these guidelines:
• If the connected modem is asynchronous, perform the following tasks:
Configure the interface as an asynchronous interface by using the physical-mode async
command and to operate in protocol mode by using the async-mode protocol command.
Configure the call-in/call-out rights for the modem on the corresponding user line for the
interface.
• If the connected modem is synchronous, configure the interface to operate as a synchronous serial
interface (by using the physical-mode sync command).
For more information about modem management, see "Managing a modem."
Configuring link layer/network/routing protocols on the dialup
interface
Dialup interfaces support PPP, IP, RIP, and OSPF. For information about configuring these protocols, see
"Configuring PPP and MP," Layer 3—IP Services Configuration Guide, and Layer 3—IP Routing
Configuration Guide.
When you configure PPP, follow these guidelines:
• For traditional DDR, configure PPP commands on the same interface as DDR parameters.
For bundle DDR:
•
On the calling side, perform the following tasks:
−
−
On the called side, configure PPP commands on physical interfaces.
Configuring dynamic route backup through DDR
Disconnecting a dialup link
Configure PPP commands on dialer interfaces.
Configure the same PPP commands on physical interfaces to guarantee successful PPP link
parameters negotiation.
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