ZyXEL Communications ZyWall Reference Manual page 313

Chapter 39 File Manager
If the default system database file is not valid, the ZyWALL displays a warning message in your
console session at startup or when reloading the anti-virus or IDP signatures. It also generates a
log. Here are some examples. Use this section to restore the ZyWALL's default system database.
Figure 45 Default System Database Console Session Warning at Startup: Anti-virus
Figure 46 Default System Database Console Session Warning When Reloading IDP
Figure 47 Default System Database Missing Log: Anti-virus
This procedure requires the ZyWALL's default system database file. Download the firmware package
from www.zyxel.com and unzip it. The default system database file uses a .db extension, for
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ZyWALL (ZLD) CLI Reference Guide