authentication winxp over LAN throw switch cisco3560 not working

[hamid benane]

hello everybody, 
i try many time to resolve this pb but i dont found the solution.
my configuration is:
freeradius-1.1.1 on fedora6+ nas switch cisco3560+ and wind xp client.
On wireless, my configuration work, when i use NAS AP of cisco1200.
But when i use my configuration to authenticate xp on lan network only: its not work. 
 
i saw on debug -X -A, that freeradius receive ACCES_REQUEST but when he send ACCES_CHALLENGE he cannot.
on trame analysis on freerdaius, i saw that he cannot send on the port that the switch tel him to send.
 
i m blocked on this step, and i cannot found the solution.
 
on my configuration, i use users:  "users"  "password" only
i havent active directory. on my switch, i dont make vlan.
 
can some one help me.
 
thanks for all
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