ZyXEL Communications P-661HW Manuale Utente

P-661H/HW Series User’s Guide

Chapter 13 VPN Screens

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When there is outbound traffic but no inbound traffic, the SA times out automatically after two 
minutes. A tunnel with no outbound or inbound traffic is "idle" and does not timeout until the 
SA lifetime period expires. See 

 on keep alive to have the ZyXEL 

Device renegotiate an IPSec SA when the SA lifetime expires, even if there is no traffic.

Figure 128   VPN: SA Monitor

The following table describes the fields in this screen.

To change your ZyXEL Device’s global settings, click VPN and then Global Setting. The 
screen appears as shown.

Table 87   VPN: SA Monitor

No

This is the security association index number. 

Name

This field displays the identification name for this VPN policy.

Encapsulation

This field displays Tunnel or Transport mode. 

IPSec Algorithm

This field displays the security protocol, encryption algorithm, and authentication 

algorithm used in each VPN tunnel.

Disconnect

Select one of the security associations, and then click Disconnect to stop that 

security association. 

Refresh

Click Refresh to display the current active VPN connection(s).