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5/26/05 Configuring Identity Networking for Operating System
OL-7426-03
Configuring Identity Networking for Operating SystemConfiguring Identity Networking for Operating System
This document explains the Identity Networking feature of Operating System, how it is configured and
the expected behavior for various security policies.
In previous Operating System releases, each WLAN had a static policy that would be applied to all
mobile clients associated with the SSID. Although very powerful, this method has limitations since it
requires clients to associate with different SSIDs to inherit different QoS and security policies.
The current Operating System supports Identity Networking, which allows the network to advertise a
single SSID, yet allows for specific users to inherit different QoS or security policies based on their user
profiles. The specific policies that may be overridden include:
• Quality of Service. When present in a RADIUS Access Accept, the QoS-Level value overrides the
QoS value specified in the WLAN profile.
• ACL. When the ACL attribute is present in the RADIUS Access Accept, the system applies the
ACL-Name to the client station after authentication occurs. This overrides any ACLs that are
assigned to the interface.
• VLAN. When a VLAN Interface-Name or VLAN-Tag is present in a RADIUS Access Accept, the
system places the client on a specific interface.
• Tunnel Attributes.
In order for this feature to be enabled, on a per WLAN basis, the Enable AAA Override configuration flag
must be enabled.
The Operating System’s local MAC Filter database has been extended to include the interface name,
allowing local MAC filters to specify to which interface the client should be assigned. A separate RADIUS
server can also be used, but the RADIUS server must be defined using the Security menus.
The following sections explain the RADIUS attributes.
RADIUS Attributes
QoS-LevelQoS-Level
This attribute indicates the Quality of Service level to be applied to the mobile client's traffic within the
switching fabric, as well as over the air. A summary of the QoS-Level Attribute format is shown below.
The fields are transmitted from left to right.
0123
01234567890123456789012345678901
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Vendor-Id
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Vendor-Id (cont.) | Vendor type | Vendor length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| QoS Level |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Note: This feature is ONLY available with MAC Filtering, 802.1X and WPA. This
feature DOES NOT WORK with Web Auth or IPSec.
Note: When any of the other RADIUS attributes in this section are returned, the
Tunnel Attributes must also be returned.