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      1. OS image and configuration Back/restore(upgrade) 
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      Note)   | 
      
       
      backup/restore configuration and upgrade OS image 
      via ftp/tftp from UNIX or PC.  | 
    
    
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      ftp client : 192.71.192.2 (PC)
       
      ftp server: 192.71.192.1 (router) 
       
      F:\test>ftp 192.71.192.1 
      
       
      Connected to 192.71.192.1.
       
      220 router FTP server (Version 1.12) ready.
       
      User (192.71.192.1:(none)): root 
      
       
      331 Password required for root. 
      Password: 
      230 User root logged in ok. 
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      set binary mode  | 
    
    
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      ftp> bin 
      200 Type set to I. 
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      when backup OS image from router/gateway to PC.  | 
    
    
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      ftp> get ap2502fec.bin 
      200 PORT command successful. 
      150 BINARY data connection for ap2502fec.bin (192.71.192.2,1824). 
      226 BINARY Transfer complete. 
      1142532 bytes received in 1.58 seconds (722.21 Kbytes/sec) 
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      when backup configuration file from router/gateway 
      to PC.  | 
    
    
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      ftp> get config.cfg 
      200 PORT command successful. 
      150 BINARY data connection for config.cfg (192.71.192.2,1825). 
      226 BINARY Transfer complete. 
      209198 bytes received in 0.29 seconds (718.89 Kbytes/sec) 
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      when upgrade OS image (transmit OS image to 
      router/gateway)  | 
    
    
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      ftp> put ap2502fec.bin 
      200 PORT command successful. 
      150 BINARY data connection for ap2502fec.bin (192.71.192.2,1826). 
      226 BINARY Transfer complete. 
      1142532 bytes sent in 1.06 seconds (1075.83 Kbytes/sec) 
       
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      Note) 
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      when transmit configuration file to router/gateway
      
       
      (Before downloading configuration file, you may edit it)  | 
    
    
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      ftp> put config.cfg 
      200 PORT command successful. 
      150 BINARY data connection for config.cfg (192.71.192.2,1827). 
      226 BINARY Transfer complete. 
      209198 bytes sent in 0.19 seconds (1101.04 Kbytes/sec) 
      ftp> 
       
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      % NOTICE  | 
    
    
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      configuration file name is fixed (config.cfg), so do 
      not change file name, if you do so, router/gateway  will not allow 
      writing it.  | 
    
    
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