ZyXEL Communications NBG410W3G Series User Manual

Chapter 11 Certificates

NBG410W3G Series User’s Guide

Figure 131   SECURITY > CERTIFICATES > Trusted Remote Hosts

The following table describes the labels in this screen.  

Table 60   SECURITY > CERTIFICATES > Trusted Remote Hosts

PKI Storage 

Space in Use

This bar displays the percentage of the ZyXEL Device’s PKI storage space that is 

currently in use. When the storage space is almost full, you should consider 

deleting expired or unnecessary certificates before adding more certificates.

Issuer (My Default 

Self-signed 

Certificate)

This field displays identifying information about the default self-signed certificate 

on the ZyXEL Device that the ZyXEL Device uses to sign the trusted remote host 

certificates.

#

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. 

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.

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.

Modify

Click the details icon to open a screen with an in-depth list of information about the 

certificate.
Use the export icon to save the certificate to a computer. Click the icon and then 

Save in the File Download screen. The Save As screen opens, browse to the 

location that you want to use and click Save.
Click the delete icon to remove the certificate. A window displays asking you to 

confirm that you want to delete the certificate. Note that subsequent certificates 

move up by one when you take this action.

Import

Click Import to open a screen where you can save the certificate of a remote host 

(which you trust) from your computer to the ZyXEL Device.

Refresh

Click this button to display the current validity status of the certificates.