Hi. I was using freeradus-2.1.10 as radius proxy server. proxy.conf says this. # Also, the mapping of host name to address is done ONCE # when the server starts. If DNS is later updated to # change the address, FreeRADIUS will NOT discover that # until after a re-start, or a HUP. So, I send to freeradius "kill -HUP". But authhost and accthost was not reloaded to new ip-address. ----- my proxy.conf ----- realm example.jp { authhost = example.jp accthost = example.jp secret = secret nostrip } Thanks for your help. ichiro tanaka