Problem : RadClient : no response from server for ID 77

[yao guoxian]

    I have installed FreeRadius 1.0.5 on the machine which has the Redhat 9
os. I entered" Radtest test test localhost 0 testing123" to check if i   had
installed FreeRdius correctly and just find the following message:
    Sending Access-Request of id 77 to 127.0.0.1:1812
        User-Name = "test"
        User-Password = "test"
        NAS-IP-Address = redhat
        NAS-Port = 0
Re-sending Access-Request of id 77 to 127.0.0.1:1812
        User-Name = "test"
        User-Password = "\002*\362\230y\233\002\221?\250\027x\027\370\3608"
        NAS-IP-Address = redhat
        NAS-Port = 0
.......
Re-sending Access-Request of id 77 to 127.0.0.1:1812
        User-Name = "test"
        User-Password = "\002*\362\230y\233\002\221?\250\027x\027\370\3608"
        NAS-IP-Address = redhat
        NAS-Port = 0
radclient: no response from server for ID 77

      I don't know what  is wrong with it , is it because I need to configer
the switch and router? For the machines in my room are conected to the Cisco
switch 2900 series and connected through it to the internet.
      I apprieate your any help!
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