ZyXEL Communications ZyWALL 5 User Manual page 462

ZyWALL 5 Internet Security Appliance
FIELD
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 This field displays the security protocols used for an SA. ESP provides
ALgorithm confidentiality and integrity of data by encrypting the data and encapsulating it
into IP packets. Encryption methods include 56-bit DES, 168-bit 3DES and 128-
bit AES. 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 ZyWALL processing requirements and
communications latency (delay).
Select Press [SPACE BAR] to choose from Refresh, Disconnect, None, Next Page, or
Command 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 Type the VPN connection index number that you want to disconnect and then
Connection 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.
40-2
Table 40-1 Menu 27.2: SA Monitor
DESCRIPTION EXAMPLE
Taiwan
Tunnel
ESP DES MD5
Refresh
1
SA Monitor