ZyXEL 4-port Prestige 792H Router 91-004-342001 Manual Do Utilizador

Prestige 792H G.SHDSL Router 

37-2  

SA 

Monitor 

# 

This is the security association index number. 

Name 

This field displays the identification name for this VPN policy. This name is 
unique for each connection where the secure gateway IP address is a public 
static IP address.  

When the secure gateway IP address is 0.0.0.0 (as discussed in the last 
chapter), there may be different connections using this same VPN rule. In this 
case, the name is followed by the remote IP address as configured in Menu 
27.1.1. – IPSec Setup. Individual connections using the same VPN rule may 
be terminated without affecting other connections using the same rule. 

Encap. 

This field displays Tunnel mode or Transport mode. See previous for 
discussion. 

IPSec 

ALgorithm 

This field displays the security protocols used for an SA. ESP provides 
confidentiality and integrity of data by encrypting the data and encapsulating it 
into IP packets. Encryption methods include 56-bit DES and 168-bit 3DES. 
NULL denotes a tunnel without encryption. 

An incoming SA may have an AH in addition to ESP. The Authentication 
Header provides strong integrity and authentication by adding authentication 
information to IP packets. This authentication information is calculated using 
header and payload data in the IP packet. This provides an additional level of 
security. AH choices are MD5 (default  - 128 bits) and SHA -1(160 bits). 

Both AH and ESP increase Prestige processing requirements and 
communications latency (delay). 

Select 

Command 

Press [SPACE BAR] to choose from Refresh, Disconnect, None, Next Page, 
or Previous Page and then press [ENTER]. You must select a connection in 
the next field when you choose the Disconnect command. Refresh displays 
current active VPN connections. None allows you to jump to the “Press 
ENTER to Confirm…” prompt. 

Select Next Page or Previous Page to view the next or previous page of rules 
(respectively). 

Select 

Connection 

Type the VPN connection index number that you want to disconnect and then 
press [ENTER]. 

When you have completed this menu, press [ENTER] at the prompt “Press ENTER to Confirm…” to save 
your configuration, or press [ESC] at any time to cancel.