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Virtual Private Networking Using IPSec and L2TP Connections
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ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
requesting individual authentication information from the user. A local user database or an
external authentication server, such as a RADIUS server, provides a method for storing the
authentication information centrally in the local network.
You can enable XAUTH when you manually add or edit
an IKE policy. Two types of XAUTH
are available:
• Edge Devic
e. The VPN firewall is used as a VPN concentrator on which one or more
gateway tunnels terminate. You need to specify the authentication type that should be
used during verification of the credentials of the remote VPN gateways: the user
database, RADIUS-PAP, or RADIUS-CHAP.
• IPSec Host. Aut
hentication by the remote gateway through a user name and password
that are associated with the IKE policy. The user name and password that are used to
authenticate the VPN firewall need to be specified on the remote gateway.
Note: If a RADIUS-PAP server is enabled for authentication, XAUTH first
checks the local user database for the user credentials. If the user
account is not present, the VPN firewall then connects to a RADIUS
server.
Configure XAUTH for VPN Clients
Once the XAUTH has been enabled, you need to establish user accounts in the user
database to be authenticated against XAUTH, or you need to enable a RADIUS-CHAP or
RADIUS-PAP server.
Note: You cannot modify an existing IKE policy to add XAUTH while the
IKE policy is in use by a VPN policy. The VPN policy needs to be
disabled before you can modify the IKE policy.
To enable and configure XAUTH:
1. Select VPN > IPSec VPN. The IPSec VPN subme
nu tabs display with the IKE Policies
for IPv4 screen in view (see Figure 154 o
n page 226).
2. S
pecify the IP version for which you want to edit an IKE policy:
• IPv4. In
the upper right of the screen, the IPv4 radio button is already selected by
default. Go to Step 3.
• IPv6. Select
the IPv6 radio button. The IKE Policies screen for IPv6 displays.
3. In the List of IKE Policies
table, click the Edit table button to the right of the IKE policy for
which you want to enable and configure XAUTH. The Edit IKE Policy screen displays. This
screen shows the same fields as the Add IKE Policy screen (see Figure 155 on p
age 227).