Nortel Networks NN46110-602 - Manual (Page 62)

62 Chapter 3 Administrative tasks
NN46110-602
Before you upgrade your software, use one of the following methods to make sure
there is enough available disk space:
• From the GUI, select Status > Statistics > File System. The last line lists the
free space on the disk.
• From the CLI, enter show status statistics system file-system. The last line
lists the free space on the disk.
Creating a control tunnel to upgrade from a remote location
To upgrade the software on a VPN Router from a remote location, you must
create a user control tunnel at the physical location of the VPN Router. User
control tunnels provide secure access to a remote VPN Router so that you can
manage it over a network.
You can create a user control tunnel through the serial port on the VPN Router or
with the GUI. When you create a user under the group Control Tunnels, it
automatically becomes a control tunnel user. To create a user control tunnel
through the serial port:
1 Connect the serial cable (supplied with the VPN Router) from the VPN
Router’s serial port to a terminal or to the communications port on a PC.
2 Turn on the PC or the terminal.
3 On the PC, start HyperTerminal * or another terminal emulation program and
press Enter.
The Welcome window appears.
4 Enter the VPN Router administrator user name and then the password.
The serial main menu appears.
Note: Some restrictions apply if you have a VPN Router 1010, 1050, or
1100. To export the configuration and LDIF files from the device, FTP
the files to a server and view the file size. If the combined size of the
LDIF and configuration files is less than 1Mbyte, you can upgrade to the
latest version. The VPN Router 1010, 1050, and 1100 allow a maximum
of two images on the flash disk. You must remove the second image (if
present) prior to downloading an upgrade.