hi port security and 802.1x configuration best way mac authentication on 2524 switch
frist config port security on switch
config)# port-security 1-20 learn-mode static address-limit 1 action send-disable
port security operation stand alone very succesful mac authentiation operation because use with 802.1x very very good.
secont config 802.1x on 2524
(config)#radius-server host 100.100.100.80 key procurve
config)#aaa authentication port-access eap-radius
config)#aaa accounting network start-stop radius
config)aaa port-access authenticator 1-20 control auto
config)#aaa port access authenticator active