ZyXEL Communications ZyWALL 5 User Manual page 235

Table 68 VPN Rules (IKE): Gateway Policy: Edit (continued)
LABEL
Content
Extended
Authentication
Enable Extended
Authentication
Server Mode
Client Mode
Chapter 14 VPN Screens
DESCRIPTION
The configuration of the peer content depends on the peer ID type.
Do the following when you set Authentication Key to Pre-shared Key.
• For IP, type the IP address of the computer with which you will make the VPN
connection. If you configure this field to 0.0.0.0 or leave it blank, the ZyWALL
will use the address in the Remote Gateway Address field (refer to the
Remote Gateway Address field description).
• For DNS or E-mail, type a domain name or e-mail address by which to identify
the remote IPSec router. Use up to 31 ASCII characters including spaces,
although trailing spaces are truncated. The domain name or e-mail address is
for identification purposes only and can be any string.
It is recommended that you type an IP address other than 0.0.0.0 or use the DNS
or E-mail ID type in the following situations:
• When there is a NAT router between the two IPSec routers.
• When you want the ZyWALL to distinguish between VPN connection requests
that come in from remote IPSec routers with dynamic WAN IP addresses.
Do the following when you set Authentication Key to Certificate.
• For IP, type the IP address from the subject alternative name field of the
certificate the remote IPSec router will use for this VPN connection. If you
configure this field to 0.0.0.0 or leave it blank, the ZyWALL will use the
address in the Remote Gateway Address field (refer to the Remote
Gateway Address field description).
• For DNS or E-mail, type the domain name or e-mail address from the subject
alternative name field of the certificate the remote IPSec router will use for this
VPN connection.
• For Subject Name, type the subject name of the certificate the remote IPSec
router will use for this VPN connection. Use up to255 ASCII characters
including spaces.
• For Any, the peer Content field is not available.
• Regardless of how you configure the ID Type and Content fields, two active
SAs cannot have both the local and remote IP address ranges overlap
between rules.
Select this check box to activate extended authentication.
Select Server Mode to have this ZyWALL authenticate extended authentication
clients that request this VPN connection.
You must also configure the extended authentication clients' usernames and
passwords in the authentication server's local user database or a RADIUS server
(see Chapter 16 on page 277).
Click Local User to go to the Local User Database screen where you can view
and/or edit the list of user names and passwords. Click RADIUS to go to the
RADIUS screen where you can configure the ZyWALL to check an external
RADIUS server.
During authentication, if the ZyWALL (in server mode) does not find the extended
authentication clients' user name in its internal user database and an external
RADIUS server has been enabled, it attempts to authenticate the client through
the RADIUS server.
Select Client Mode to have your ZyWALL use a username and password when
initiating this VPN connection to the extended authentication server ZyWALL.
Only a VPN extended authentication client can initiate this VPN connection.
ZyWALL 5 User's Guide
233