ZyXEL Communications ZyWALL 2 Series User Manual

Page of 614
ZyWALL 2 Series User’s Guide 
15-4  
Certificates 
Table 15-1 My Certificates 
LABEL DESCRIPTION 
PKI Storage 
Space in Use 
This bar displays the percentage of the ZyWALL’s PKI storage space that is currently 
in use. When you are using 80% or less of the storage space, the bar is green. When 
the amount of space used is over 80%, the bar is red. When the bar is red, you 
should consider deleting expired or unnecessary certificates before adding more 
certificates. 
Replace  This button displays when the ZyWALL has the factory default certificate. The factory 
default certificate is common to all ZyWALLs that use certificates. ZyXEL 
recommends that you use this button to replace the factory default certificate with 
one that uses your ZyWALL's MAC address. 
This field displays the certificate index number. The certificates are listed in 
alphabetical order.  
Name 
This field displays the name used to identify this certificate. It is recommended that 
you give each certificate a unique name.  
Type 
This field displays what kind of certificate this is. REQ represents a certification 
request. SELF represents a self-signed certificate. *SELF represents the default self-
signed certificate, which the ZyWALL uses to sign imported trusted remote host 
certificates. CERT represents a certificate issued by a certification authority. 
Subject 
This field displays identifying information about the certificate’s owner, such as CN 
(Common Name), OU (Organizational Unit or department), O (Organization or 
company) and C (Country). It is recommended that each certificate have unique 
subject information.  
Issuer 
This field displays identifying information about the certificate’s issuing certification 
authority, such as a common name, organizational unit or department, organization 
or company and country. With self-signed certificates, this is the same information as 
in the Subject field. 
Valid From 
This field displays the date that the certificate becomes applicable. The text displays 
in red and includes a “Not Yet Valid!” message if the certificate has not yet become 
applicable. 
Valid To 
This field displays the date that the certificate expires. The text displays in red and 
includes an “Expiring!” or “Expired!” message if the certificate is about to expire or 
has already expired. 
Import 
Click Import to open a screen where you can save the certificate that you have 
enrolled from a certification authority from your computer to the ZyWALL. 
Create 
Click Create to go to the screen where you can have the ZyWALL generate a 
certificate or a certification request.