Справочное Руководство для Netopia r6100

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9-6  User’s Reference Guide
Backup Configuration screen
This screen is used to configure the conditions under which backup will occur, if it will recover, and how the 
Auxiliar y por t is configured.
For an internal V.90 modem or an external modem connected to the Auxiliar y por t, the Backup Configuration 
screen appears as follows (variations for ISDN are described below):
Select Backup to Auxiliary Port, Backup to Internal Modem, or Backup to ISDN and press Return. The 
system automatically senses whether you have an internal modem or ISDN card installed in the second 
slot. If you do not, this menu item will be Auxiliar y Por t; if you do, this item will be Internal Modem or ISDN. 
A pop-up menu allows you to select Disabled, Manual, or Automatic. You enable line backup by selecting 
either Manual or Automatic. If you enable backup, the subsequent menu items become visible.
Select Requires Data Link Failure of and enter the period of time in minutes to determine how long you 
want the system to wait before the backup por t becomes enabled in the event of primar y line failure. This 
allows you to be sure that the primar y WAN connection is not merely briefly interrupted before the router 
switches to backup mode. The value zero is not permitted.
Select Ping Host Name or IP Address and enter an IP address or resolvable DNS name that the router will 
ping. This is an optional item that is par ticularly useful for testing if the remote end of a VPN connection 
has gone down. Should this address become unreachable the router will treat this as a loss of connectivity 
and begin the backup timer. This loss is a Layer 2 loss.
Select Recovery to “WAN_name” (where WAN_name is the type of WAN connection you have, e.g., ADSL) 
and press Return. Choose either Manual or Automatic to determine how the system will return to the 
primar y WAN link when it becomes available again. If you choose Automatic, the next two menu items 
become visible.
Note: Automatic recover y only works upon loss of primar y WAN connectivity.
If you chose Automatic Recover y, select Requires Recovery of and enter the period of time in minutes 
to determine how long you want the system to wait before the primar y WAN connection is well re-estab-
                             Backup Configuration
         Backup Parameters
         Backup to Auxiliary Port...        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:  No
         Clear Backup Call only if idle:    No
         Data Link Encapsulation is         Async PPP
Enter Information supplied to you by your telephone company.