NETGEAR ProSafe SSL312 - Manual (Page 40)

NETGEAR ProSafe SSL VPN Concentrator 25 SSL312 Reference Manual
3-6 Authenticating Users
v1.1, November 2006
6. To force users to supply a valid digital certificate before granting access, check the Require
client digital certificates radio box. The CNAME of the client certificate must match the user
name that the user supplies to log in and the certificate must be generated by a certificate
authority (CA) that is trusted by the SSL VPN Concentrator.
7. Click Apply to update the configuration. Once the domain has been added, the domain
displays in the table in the Domains screen.
LDAP Authentication
LDAP (Lightweight Directory Access Protocol) is a standard for querying and updating a
directory. Since LDAP supports a multilevel hierarchy (for example, groups or organizational
units), the SSL VPN Concentrator can query this information and provide specific group policies
or bookmarks based on LDAP attributes. By configuring LDAP attributes, the SSL VPN
Concentrator administrator can leverage the groups that have already been configured in an LDAP
or Active Directory database, rather than manually recreating the same groups in the SSL VPN
Concentrator.
Once an LDAP authentication domain is created, a default LDAP group will be created with the
same name as the LDAP domain name. Although you can add additional groups to or delete
groups from this domain, you cannot delete the default LDAP group.
For an LDAP group, you can define LDAP attributes. For example, you can specify that users in
an LDAP group must be members of a certain group or organizational unit defined on the LDAP
server. Or you can specify a unique LDAP distinguished name.
To add an LDAP authentication domain, see “Authentication Domains” in Chapter 3 .
Sample LDAP Attributes
You can enter up to 4 LDAP attributes per group. The following are some example LDAP
attributes of Active Directory LDAP users:
Note: The Microsoft Active Directory database uses an LDAP organization schema. The
Active Directory database can be queried using Kerberos authentication (the
standard authentication type; this is labeled “Active Directory” domain
authentication in the SSL VPN Concentrator), NTLM authentication (labeled “NT
Domain” authentication in the SSL VPN Concentrator), or using LDAP database
queries. So, an LDAP domain configured in the SSL VPN Concentrator can
authenticate to an Active Directory server.