Nortel Networks NN46110-602 - Manual (Page 97)

Chapter 4 Troubleshooting 97
Nortel VPN Router Troubleshooting
Action: If necessary, remove the front bezel as described in the installation guide,
then push the bottom of the power supply in to reseat it.
Cannot convert from an internal address pool to an external
DHCP server
Cause: You cannot convert IP address distribution from an internal address pool
to an external DHCP server while sessions are active.
Action: Select Admin
> Shutdown, and select Disable Logins after Restart.
After everyone has logged off, you can convert from an internal address pool to an
external DHCP server.
Group and user profile settings not saved
Cause: When you use the Save Current Configurations option on the Admin
>
Configs window, it saves only the operational parameters in the configuration file,
such as interface IP addresses and subnet masks, backup host IP addresses, DNS
names.
Action: To completely back up the VPN Router configuration, you must also back
up the LDAP database, which contains the group and user profiles, filters, and
backup file names. To do this:
1 Select Servers
> LDAP
2 Click Stop Server.
3 Enter a file name in Backup/Restore LDAP Database. Make sure this name
conforms to the MS-DOS naming conventions and append the filename with
LDF (for example, ldapone.ldf). The restore process can take anywhere from
five minutes for a very small LDAP database to several hours for a very large
database.
4 You can view the progress of the restoration from the Admin > Health Check
window.
Restart fails after using recovery and reformatting the hard disk
Cause: When you are using the recovery disk and reformatting the hard disk,
sometimes the system does not restart.