HP PROCURVE 2910AL, Access Security Manual

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Security Overview
Precedence of Security Options
NIM also allows you to configure and apply client-specific profiles on ports
that are not configured to authenticate clients (unauthorized clients), provided
that a client’s MAC address is known in the switch’s forwarding database.
The profile of attributes applied for each client (MAC address) session is
stored in the hpicfUsrProfile MIB, which serves as the configuration interface
for Network Immunity Manager. A client profile consists of NIM-configured,
RADIUS-assigned, and statically configured parameters. Using
show
commands for 802.1X, web or MAC authentication, you can verify which
RADIUS -assigned and statically configured parameters are supported and if
they are supported on a per-port or per-client basis.
A NIM policy accesses the hpicfUsrProfileMIB through SNMP to perform the
following actions:
■ Bind (or unbind) a profile of configured attributes to the MAC address of
a client device on an authenticated or unauthenticated port.
■ Configure or unconfigure an untagged VLAN for use in an authenticated
or unauthenticated client session.
Note that the attribute profile assigned to a client is often a combination of
NIM-configured, RADIUS-assigned, and statically configured settings.
Precedence is always given to the temporarily applied NIM-configured
parameters over RADIUS-assigned and locally configured parameters.
For information on Network Immunity Manager, go to the HP ProCurve
Networking Web site at
www.procurve.com/solutions , click on Security , and
then click on Security Products .
Arbitrating Client-Specific Attributes
In previous releases, client-specific authentication parameters for 802.1X
Web, and MAC authentication are assigned to a port using different criteria.
A RADIUS-assigned parameter is always given highest priority and overrides
statically configured local passwords. 802.1X authentication parameters
override Web or MAC authentication parameters.
DCA stores three levels of client-specific authentication parameters and
prioritizes them according to the following hierarchy of precedence:
1. NIM access policy (applied through SNMP)
2. RADIUS-assigned
a. 802.1X authentication
b. Web or MAC authentication
3. Statically (local) configured
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