Troubleshooting Persistent Backup Connections; Standard Procedures - HP 7102dl - ProCurve Secure Router Configuration Manual

Viewing Backup Configurations and Troubleshooting Backup Connections
The router will not answer a call if the number is not in its dial backup list.
The router will receive a message such as this:
DIAL_BACKUP.MGR: Ignoring incoming call on bri 1/3 from 0005552222 because no
match was found for this call source.

Troubleshooting Persistent Backup Connections

Monitoring the backup connection can point you in the general direction for
troubleshooting. If the router does not establish a backup connection, exam-
ine the debug messages for clues to whether the interface is dialing a number
but not connecting, or not dialing a number at all.
After the call connects, the router should receive PPP.NEGOTIATION mes-
sages through the BRI interface bringing the link up. If the dialup interface
connects the call, but the backup PPP interface does not come up, you may
have a problem with authentication.

Standard Procedures

You should monitor the backup call to determine the problem. Does the
backup interface place a call at all? Does the call connect? Move to the section
that describes your problem and follow the process described.
The BRI or Modem Interface Does Not Dial A Number. If no debug
messages appear, then the backup interface is not dialing a number at all.
Follow these steps:
1. View the BRI or modem interface (show <interface ID>).
2. If the interface is down, troubleshoot the interface. (See "Troubleshooting
a BRI Interface" on page 3-75 or "Troubleshooting a Modem Interface" on
page 3-76.)
3. If the BRI or modem interface is up, the router, for some reason, cannot
request backup for the failed connection.
4. If the modem interface is up, but does not establish a backup connection,
it may be configured to support dialin console sessions. Disable this
option if you want the modem to provide backup. If the dialin option is
not enabled, proceed to the next step to look for another problem.
5. Enter show backup int and view the primary interface call mode. (See
"Viewing Backup Settings" on page 3-87.)
Configuring Backup WAN Connections
3-91