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Prestige 128IMH ISDN Modem/ Router/Hub
3-14 Internet Access
At this point, your Prestige will ask if you wish to test the Internet connection. If you select Yes ,
the Prestige will call the ISP and test the configuration. If the test fails, note the error messages
on the screen and take the appropriate troubleshooting steps.
3.6 Configuring Backup ISP Accounts
If you have more than one ISP account, you can configure the secondary ISP as a backup. You
can switch to the backup ISP in the event that the primary ISP is out of service. The SUA feature
can be enabled for all these accounts.
3.6.1 Configure a Backup ISP
To configure a backup ISP Account, follow these steps:
Step 1.
Configure your primary ISP using Menu 4, as described earlier in this chapter.
Step 2.
Enter Menu 11, then select an unused remote node.
Step 3.
In Menu 11.1, choose a name for your backup ISP account, then set the Active field to
No, and enter your outgoing login name, password, and phone number(s). The Remote
IP Address field should be set to
1.1.1.1
.
Step 4.
In Menu 11.3, set the remote node's subnet mask to
0.0.0.0
, and set RIP to
None
.
Step 5.
Save the new configuration.
Please note that the remote IP address of
1.1.1.1
is only a placeholder to avoid conflicting with
that of the primary ISP, which is implicitly set at 0.0.0.0 . When the backup ISP is activated, the
remote IP address of 1.1.1.1 combined with the subnet mask of 0.0.0.0 creates a default route
that is equivalent to the one derived form the primary ISP.
3.6.2 To Switch ISP
Follow these steps when you need to switch from your primary ISP to a backup ISP:
Step 1.
Enter Menu 11 and select your Primary ISP.
Step 2.
In Menu 11.1, set the Active field to
No
.