HP MSR Router Series Wan Access Configuration Manual page 203

# Enable traditional DDR on interface Dialer 0.
[RouterA] interface dialer 0
[RouterA-Dialer0] dialer circular enable
# Configure an IP address for the interface.
[RouterA-Dialer0] ip address 100.1.1.1 255.255.255.0
# Associate dialer group 1 with the interface.
[RouterA-Dialer0] dialer-group 1
# Configure dial strings for calling Router B and Router C.
[RouterA-Dialer0] dialer route ip 100.1.1.2 8810052
[RouterA-Dialer0] dialer route ip 100.1.1.3 8810063
[RouterA-Dialer0] quit
# Configure interface Serial 2/1/0 to operate as an asynchronous interface in protocol mode.
[RouterA] interface serial 2/1/0
[RouterA-Serial2/1/0] physical-mode async
[RouterA-Serial2/1/0] async-mode protocol
# Assign the interface to dialer circular group 0.
[RouterA-Serial2/1/0] dialer circular-group 0
[RouterA-Serial2/1/0] quit
# Configure interface Serial 2/1/1 to operate as an asynchronous interface in protocol mode.
[RouterA] interface serial 2/1/1
[RouterA-Serial2/1/1] physical-mode async
[RouterA-Serial2/1/1] async-mode protocol
# Assign the interface to dialer circular group 0.
[RouterA-Serial2/1/1] dialer circular-group 0
[RouterA-Serial2/1/1] quit
# Configure user lines to be used, and enable modem dial-in and dial-out on them.
[RouterA] line tty1
[RouterA-line-tty1] modem enable both
[RouterA-line-tty1] quit
[RouterA] line tty2
[RouterA-line-tty2] modem enable both
2. Configure Router B:
# Create dialer group 1 and configure a dial rule for it.
<RouterB> system-view
[RouterB] dialer-group 1 rule ip permit
# Configure interface Serial 2/1/0 to operate as an asynchronous interface in protocol mode.
[RouterB] interface serial 2/1/0
[RouterB-Serial2/1/0] physical-mode async
[RouterB-Serial2/1/0] async-mode protocol
# Configure an IP address for the interface.
[RouterB-Serial2/1/0] ip address 100.1.1.2 255.255.255.0
# Enable traditional DDR on the interface.
[RouterB-Serial2/1/0] dialer circular enable
# Associate dialer group 1 with the interface.
[RouterB-Serial2/1/0] dialer-group 1
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