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Line Backup 7-13
SNMP Support
The router supports objects for determining the state of backup, as well as providing traps for the backup and
recovery events. No objects support configuration of backup or recovery.
Backup Default Gateway
Introduced in version 5.1.2, the firmware offers backup functionality to an alternate gateway typically connected
to a LAN port.
A typical application would be to have a LAN connection from your 4000-Series router to another router that
has, for example, an ISDN or analog modem connection to the Internet, and designating the second router as
the backup gateway. Should the primary WAN connection fail, traffic would be automatically redirected through
your alternate gateway device to maintain Internet connectivity.
Two menus control the backup gateway feature:
■ the Backup Configuration screen in the WAN Configuration menu
Here, you enable the backup feature and set some parameters.
■ the IP Setup screen in the System Configuration menu
Here, you set the IP address of the alternate gateway device.
Backup Configuration screen
To enable the backup feature, from the Main Menu select WAN Configuration, Advanced Connection Options,
and then Backup Configuration.
Main
Menu
WAN
Configuration
Advanced
Connection Options
Backup
Configuration