Configuring The Online User Handshake Function; Configuration Guidelines; Configuration Procedure - HP 12500 Series Configuration Manual

Server timeout timer—Starts when the access device sends a RADIUS Access-Request packet to the
•
authentication server. If no response is received when this timer expires, the access device
retransmits the request to the server.
You can set the client timeout timer to a high value in a low-performance network, and adjust the server
timeout timer to adapt to the performance of different authentication servers. In most cases, the default
settings are sufficient.
To set the 802.1X authentication timeout timers:
Step
1. Enter system view.
2. Set the client timeout
timer.
3. Set the server timeout
timer.

Configuring the online user handshake function

The online user handshake function checks the connectivity status of online 802.1X users. The network
access device sends handshake messages to online users at the interval specified by the dot1x timer
handshake-period command. If no response is received from an online user after the maximum number
of handshake attempts (set by the dot1x retry command) has been made, the network access device sets
the user in the offline state.
If iNode clients are deployed, you can also enable the online handshake security function to check for
802.1X users that use illegal client software to bypass security inspection such as dual network interface
cards (NICs) detection. This function checks the authentication information in client handshake messages.
If a user fails the authentication, the network access device logs the user off.

Configuration guidelines

Follow these guidelines when you configure the online user handshake function:
To use the online handshake security function, make sure the online user handshake function is
•
enabled. HP recommends that you use the iNode client software and IMC server to guarantee the
normal operation of the online user handshake security function.
• If the network has 802.1X clients that cannot exchange handshake packets with the network access
device, disable the online user handshake function to prevent their connections from being
inappropriately torn down.

Configuration procedure

To configure the online user handshake function:
Step
1. Enter system view.
2. Set the handshake timer.
Command
system-view
dot1x timer supp-timeout
supp-timeout-value
dot1x timer server-timeout
server-timeout-value
Command
system-view
dot1x timer handshake-period
handshake-period-value
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Remarks
N/A
The default setting is 30 seconds.
The default setting is 100 seconds.
Remarks
N/A
Optional.
The default setting is 15 seconds.