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Line Backup 7-5
Note:
• The modem cable should have a standard DB-9 female connector to connect to the console port. This is the
standard type of modem cable connector.
• Macintosh users who use a USB-to-serial adapter to connect to the console serial port can use a modem in
Modem/Auto mode. However, your terminal emulator software will not function in this mode via the USB
adapter, due to the pin assignments in the adapter. For console management access, Macintosh users should
use Console Only mode.
■ If you select Modem/Auto, you can select its Data Rate from a pop-up menu, edit the Serial Modem
Init String, if necessary, and enter your local Serial Modem Directory Number.
Changes to Serial Port Mode take place after a reboot. This is not automatic. You may continue to con-
figure these settings, and after you are finished, you must reboot the router manually. See “Restarting
the System” on page 11-12.
■ Press Escape twice to return to the WAN Configuration screen, and select Advanced Connection
Options, then Backup Configuration (shown on page 7-5).
Backup Configuration screen
This screen is used to configure the conditions under which backup will occur, if it will recover, and how the
Console port is configured.
For a modem connected to the Console port, the Backup Configuration screen appears as follows:
■ Select Backup is and from the pop-up menu, select Automatic (default), Manual, or Disabled. You enable
line backup by selecting either Manual or Automatic.
■ Select Requires Data Link Failure of... and enter the number of minutes that the system should wait
before it assumes that a connection failure has occurred. After that period, the system would switch to
Backup Configuration
Backup Parameters
Backup is... Automatic
Requires Failure of (minutes): 1
Ping Host Name or IP Address:
Recovery to ADSL... Automatic
Requires Recovery of (minutes): 1
Auto-Recovery on loss of Layer 2: Yes
Layer 2 Failure Timer (seconds): 0
Clear Backup Call only if idle: Yes
Requires idle time of (seconds): 300
Data Link Encapsulation is Async PPP
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