ZyXEL Communications P-334W User Manual

Prestige 334W User’s Guide 

16-30  

VPN 

Screens 

Authentication 
Algorithm 

Select SHA1 or MD5 from the drop-down list box. MD5 (Message Digest 5) and 
SHA1 (Secure Hash Algorithm) are hash algorithms used to authenticate 
packet data. The SHA1 algorithm is generally considered stronger than MD5, 
but is slower. Select MD5 for minimal security and SHA-1 for maximum 
security.  

Encryption Key (Only 
with ESP) 

With DES, type a unique key 8 characters long. With 3DES, type a unique key 
24 characters long. Any characters may be used, including spaces, but trailing 
spaces are truncated. 

Authentication Key 

Type a unique authentication key to be used by IPSec if applicable. Enter 16 
characters for MD5 authentication or 20 characters for SHA-1 authentication. 
Any characters may be used, including spaces, but trailing spaces are 
truncated. 

Apply 

Click Apply to save your changes back to the Prestige. 

Reset 

Click Reset to begin configuring this screen afresh. 

In the web configurator, click VPN and the SA Monitor tab. Use this screen to display and manage active 
VPN connections. 

A Security Association (SA) is the group of security settings related to a specific VPN tunnel. This screen 
displays active VPN connections. Use Refresh to display active VPN connections. This screen is read-only. 
The following table describes the labels in this tab.