NETGEAR STM150EW-100NAS, UTM5EW-100NAS manual External authentication protocols and methods, 379

ProSecure Unified Threat Management (UTM) Appliance

The UTM supports security policies that are based on an Active Directory with single sign-on (SSO) through the use of the DC agent and additional Lightweight Directory Access Protocol (LDAP) configuration options (see Configure Authentication Domains, Groups, and Users on page 380).

The following table summarizes the external authentication protocols and methods that the UTM supports.

Table 98. External authentication protocols and methods

Authentication	Description
protocol or method
PAP	Password Authentication Protocol (PAP) is a simple protocol in which the client sends a
	password in clear text.
CHAP	Challenge Handshake Authentication Protocol (CHAP) executes a three-way handshake
	in which the client and server trade challenge messages, each responding with a hash of
	the other’s challenge message that is calculated using a shared secret value.
RADIUS	A network-validated PAP, CHAP, MSCHAP, or MSCHAPv2 password-based
	authentication method that functions with Remote Authentication Dial In User Service
	(RADIUS).
MIAS	A network-validated PAP or CHAP password-based authentication method that functions
	with Microsoft Internet Authentication Service (MIAS), which is a component of Microsoft
	Windows 2003 Server.
WiKID	WiKID Systems is a PAP or CHAP key-based two-factor authentication method that
	functions with public key cryptography. The client sends an encrypted PIN to the WiKID
	server and receives a one-time passcode with a short expiration period. The client logs in
	with the passcode. See Appendix F, Two-Factor Authentication, for more on WiKID
	authentication.
NT Domain	A network-validated domain-based authentication method that functions with a Microsoft
	Windows NT Domain authentication server. This authentication method has been
	superseded by Microsoft Active Directory authentication but is supported to authenticate
	legacy Windows clients.
Active Directory	A network-validated domain-based authentication method that functions with a Microsoft
	Active Directory authentication server. Microsoft Active Directory authentication servers
	support a group and user structure. Because the Active Directory supports a multilevel
	hierarchy (for example, groups or organizational units), this information can be queried to
	provide specific group policies or bookmarks based on Active Directory attributes.
	The UTM supports single sign-on (SSO) through the use of the DC agent and additional
	LDAP configuration options.
	Note: A Microsoft Active Directory database uses an LDAP organization schema.
LDAP	A network-validated domain-based authentication method that functions with a
	Lightweight Directory Access Protocol (LDAP) authentication server. LDAP is a standard
	for querying and updating a directory. Because LDAP supports a multilevel hierarchy (for
	example, groups or organizational units), this information can be queried to provide
	specific group policies or bookmarks based on LDAP attributes.
	The UTM supports single sign-on (SSO) through the use of the DC agent and additional
	LDAP configuration options.

Manage Users, Authentication, and VPN Certificates

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