Nortel Networks NN46110-602 - Manual (Page 61)

Chapter 3 Administrative tasks 61
Nortel VPN Router Troubleshooting
• Nortel Web site
• your own FTP site if you previously downloaded the software from the Nortel
FTP site
• Nortel software CD
If an FTP server does not use standard FTP port numbers, you cannot use it to
download FTP servers for Nortel software. For more information, contact Nortel
Customer support.
If file retrieval fails, the VPN Router retries the transfer. The WU-FTP server does
not support this behavior and can cause the negotiation to fail. Explore
connectivity issues as the first possible level of failure.
Checking available disk space
Nortel recommends that you keep a maximum of four software versions on the
system disk. If four versions already exist on the Admin
> Upgrade window, you
must delete one version before you download another version.
To remove a software version:
1 Select Admin > File System.
2 Select the Hard Drive (/ide0/).
3 Click Display.
A list of the versions on the VPN Router appears.
4 Click the version you want to view and click Details. When the window
refreshes, you see the directory that you just selected. Click Delete Directory.
A new window appears verifying this is what you intended to do. If there is
more then one image on the hard drive, follow the above process to delete all
the older image upgrades.
Note: You cannot upgrade the software through a branch office tunnel
that is translating the management address with dynamic Network
Address Translation (NAT).