7-8 Firmware User Guide
■
From the
Dial
pop-up menu, you can choose whether to Dial Out Only, Dial In Only, or Dial In/Out (default).
■
You can add the
Number to Dial
and an
Alternate Site to Dial
, if available.
■
You can toggle
Dial on Demand
to Yes or No. This allows the router to determine whether or not to dial the
backup number when there is traffic that needs to be transmitted or received.
■
You can set the
Idle Timeout (seconds)
to tear down the connection after some specified period of
inactivity.
■
You can also toggle
Callback
to No or Yes. In most cases, since this is a backup connection, you can leave
this set to the default No.
Using Scheduled Connections with Backup
The backup link is a PPP dial-up connection and only connects to the Internet ser vice provider when traffic is
initiated from the LAN. If you want to use the backup link to provide redundancy for ser vices, such as a Web
ser vice that you provide to the outside world, you must force the connection to stay up. You do this by creating
a scheduled connection entr y that will be a permanent “forced up” connection for the backup por t. The backup
por t will be activated upon primar y WAN link failure and remain active until primar y WAN link recover y.
To configure a Scheduled Connection, from the Main Menu select WAN Configuration and then Scheduled
Connections.
Telco Options
Dial... Dial In/Out
Number to Dial:
Alternate Site to Dial:
Dial on Demand: Yes
Idle Timeout (seconds): 300
Callback: No
Scheduled
WAN Configuration
Main
Menu
Connections
Summary of Contents for 4000 Series
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