User's Manual

hwc_vnsconfiguration.fm
Virtual Network configuration
Topology for a VNS
A31003-W1050-U100-2-7619,
March 2008
HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide 167
The post timeout is the max amount of time that is allowed to elapse from the last
time any traffic was received for an authenticated user. For example, a user may
have disconnected from the system and is no longer be connected. A post
timeout expires and cleans up the session.
A client that exceeds either the pre or post timeout value will be forced to
disassociate.
The session timer defines the maximum amount of time a session is allowed to
be connected to the system. The session timer is particularly useful in pay-per-
use models. When the lifetime of the session reaches the defined limit, the
session is expired and cleaned up. A user would have to re-authenticate with the
system to continue to receive network services.
Note: The VNS timeout parameters define the default timers applicable to
session management within the VNS. However, RADIUS authentication (access-
accept) may return specific timers applicable to the particular user. A RADIUS
returned value overwrites the VNS default values for the specific user.
In addition, a zero (0) value for any of the timers indicates a non-applicable value.
Therefor, the corresponding timer is not enforced.
To define the session timeout parameters for a VNS:
1. From the main menu, click Virtual Network Configuration. The Virtual
Network Configuration page is displayed.
2. In the left pane Virtual Networks list, click the VNS you want to define the
session timeout parameters for. The Topology tab is displayed.
3. In the Idle (pre) box, type the number of minutes that a client is allowed to be
idle on the VNS before authentication.
4. In the Idle (post) box, type the number of minutes that a client is allowed to
be idle on the VNS after authentication.
5. In the Session box, type the maximum time limit of a session. If you do not
provide a Session value, there is no time limit.
6.3.1.2 Enabling management traffic
If management traffic is enabled for a VNS, it overrides the built-in exception
filters that prohibit traffic on the HiPath Wireless Controller data interfaces. For
more information, see Section 6.9, “Configuring filtering rules for a VNS”, on page
194.