Secure Computing SG300 User Manual page 59

The latter two settings are optional, but are generally required for normal operation.
Multiple DNS addresses may be entered separated by commas. You may also enter a
descriptive Connection Name if you wish. Click Finish or Update.
Connection (dial on demand)
You may choose to bring up a PPPoE/PPPoA DSL, dialout or ISDN connection only
when PCs on the LAN, DMZ or Guest network (via a VPN tunnel) are trying to reach the
Internet and disconnect again when the connection has been idle for a specified period.
This is known as dial on demand, and is particularly useful when your connection is
metered by time.
Click the Edit icon, then the Connection tab for the connection for which you wish to
enable dial on demand.
Check Dial on Demand. Idle Time (minutes) is the number of minutes the SnapGear
unit waits after the connection becomes idle before disconnecting. Max Connection
Attempts specifies the number of times the SnapGear unit attempts to connect should
the dial-up connection fail. This is useful to prevent the situation where an incorrectly
entered user name and password or expired account leads to a large phone bill. Time
between redials (seconds) is the time to wait between such reconnection attempts.
Network Setup
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