Nortel Networks NN46110-602 manual Creating a control tunnel to upgrade from a remote location

62 Chapter 3 Administrative tasks

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.

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.

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:

1Connect 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.

2Turn on the PC or the terminal.

3On the PC, start HyperTerminal* or another terminal emulation program and press Enter.

The Welcome window appears.

4Enter the VPN Router administrator user name and then the password. The serial main menu appears.

NN46110-602