HP ProCurve 420 Management And Configuration Manual page 102

Access Point Configuration
Configuring RADIUS Client Authentication
Figure 5-14. The Auth. Servers Window
5-44
6. (Optional) For the Timeout and Retransmit Attempts fields, accept the
default values unless you experience problems connecting to the RADIUS
server over the network.
7. (Optional) If you have a secondary RADIUS server in the network, specify
its IP address and other parameters in the appropriate fields. Otherwise,
leave the IP address setting as all zeros (0.0.0.0).
Set the MAC Address Format and VLAN ID Format as required.
8.
9. Click the
[Apply Changes]
button.