Virtual Private Networking Using IPSec and L2TP Connections
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ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
4. In the Extended Authentication section on the screen, complete the settings as explained in
the following table:
5. Click Apply to save your settings.
User Database Configuration
When XAUTH is enabled in an Edge Device configuration, users need to be authenticated
either by a local user database account or by an external RADIUS server. Whether or not you
use a RADIUS server, you might want some users to be authenticated locally. These users
need to be added to the List of Users table on the Users screen, as described in Configure
User Accounts on page 303.
RADIUS Client and Server Configuration
Remote Authentication Dial In User Service (RADIUS, RFC 2865) is a protocol for managing
authentication, authorization, and accounting (AAA) of multiple users in a network. A
RADIUS server stores a database of user information and can validate a user at the request
of a gateway or server in the network when a user requests access to network resources.
During the establishment of a VPN connection, the VPN gateway can interrupt the process
with an XAUTH request. At that point, the remote user needs to provide authentication
information such as a user name and password or some encrypted response using his or her
Table 56. Extended authentication settings for IPv4 and IPv6
Setting Description
Select one of the following radio buttons to specify whether Extended Authentication (XAUTH) is enabled,
and, if enabled, which device is used to verify user account information:
• None. XAUTH is disabled. This the default setting.
• Edge Device. The VPN firewall functions as a VPN concentrator on which one or more gateway tunnels
terminate. The authentication modes that are available for this configuration are User Database, RADIUS
PAP, and RADIUS CHAP.
• IPSec Host. The VPN firewall functions as a VPN client of the remote gateway. In this configuration, the
VPN firewall is authenticated by a remote gateway with a user name and password combination.
Authentication
Type For an Edge Device configuration, from the drop-down list, select one of the following
authentication types:
• User Database. XAUTH occurs through the VPN firewall’s user database. You can add
users on the Add User screen (see User Database Configuration on page 241).
• Radius PAP. XAUTH occurs through RADIUS Password Authentication Protocol (PAP).
The local user database is first checked. If the user account is not present in the local
user database, the VPN firewall connects to a RADIUS server. For more information,
see RADIUS Client and Server Configuration on page 241.
• Radius CHAP. XAUTH occurs through RADIUS Challenge Handshake Authentication
Protocol (CHAP). For more information, see RADIUS Client and Server Configuration on
page 241.
Username The user name for XAUTH.
Password The password for XAUTH.