1.3.  .

   ,   
    OS Linux,    ,  
   .       ,
        
.

 :

HAM-HOWTO <http://sunsite.unc.edu/LDP/HOWTO/HAM-HOWTO.html>
NET-3-HOWTO <http://sunsite.unc.edu/LDP/HOWTO/NET-3 HOWTO.html>
     CSMA-CD - HOWTO
< http: // sunsite.unc.edu/LDP/HOWTO/Ethernet HOWTO.html>

 :

  -
HOWTO < http: // sunsite.unc.edu/LDP/HOWTO/Firewall HOWTO.html>

    Linux    :
Linux HOWTO < http: // sunsite.unc.edu/LDP/HOWTO/ > .

2.     Linux.

 AX.25    ,   ,   
  ,     
   -       , 
Tcp/Ip, NetRom.    2   X. 25  
     . NetRom 
-        AX.25  
     .    ,
    AX.25. NetRom  
     .

 Rose        W2VY 
 X.25         AX.25
   .     .
    10-  .   
      (DNIC)   
   CCITT X.121.   
 Rose     RATS Web server <http://www.rats.org/>.
        
AX.25  Linux. Jonathon Naylor < g4klx @g4klx. demon.co.uk > 
 ,  NetRom,      AX.25
  . DAMA  (   
)   Joerg, DL1BKE, jreuter@poboxes.com. Baycom 
SoundModem     , <sailer@ife.ee.ethz.ch>.
   AX.25   .
Linux   KISS ,  TNC's ( 
), ttawa PI , Gracilis PacketTwin    Z8530 Scc,
    SCC   Baycom    
  .    SoundModem  
SoundBlaster  SoundCards,    ChipSet.
     PMS (
  ),  ,    
   AX.25      
  NetRom .     AX.25
        AX.25 NetRom
Daemon,       
NetRom.

2.1.     .

  S Linux  AX.25  ,    .  
      -     
NOS, BPQ   AX.25 ,       .
  AX.25  S Linux     
     ,     
.   ,      ,  
   ,    
 AX.25.         
Linux.

    :

       -----------------------------------------------
       | AF_AX25 | AF_NETROM |  AF_INET    | AF_ROSE |
       |=========|===========|=============|=========|
       |         |           |             |         |
       |         |           |    TCP/IP   |         |
       |         |           ----------    |         |
       |         |   NetRom           |    | Rose    |
       |         -------------------------------------
       |            AX.25                            |
       -----------------------------------------------

  ,   NetRom, Rose  TCP/IP 
   AX.25,        
      .
"AF_ name " -  ,  "Adress  Family"   
      .
!  ,      
   AX.25,      
 -        NetRom, Rose  TCP/IP
.

      Linux
------------------------------------------------------------------------------
           |  Programs |     call       node   ||  Daemons | ax25d  mheardd
    User   |           |     pms        mheard ||          | inetd  netromd
------------------------------------------------------------------------------
           | Sockets   | open(), close(), listen(), read(), write(), connect()
           |           |------------------------------------------------------
           |           |    AF_AX25   |  AF_NETROM  |   AF_ROSE   |  AF_INET
           |------------------------------------------------------------------
       | Protocols |    AX.25     |   NetRom    |     Rose    | IP/TCP/UDP
           |------------------------------------------------------------------
           | Devices   |    ax0,ax1   |  nr0,nr1    | rose0,rose1 | eth0,ppp0
           |------------------------------------------------------------------
           | Drivers   |  Kiss   PI2   PacketTwin   SCC   BPQ     | slip ppp
           |           |      Soundmodem      Baycom              | ethernet
------------------------------------------------------------------------------
 |  PI2 Card, PacketTwin Card, SCC card, Serial port, Ethernet Card
------------------------------------------------------------------------------

  -  ,  .   ,
    ,  
 .     
 ,  ,  
,        .
     ,   ,  
,        
 .  ,      ,
     ,  ,
     ,   
  ,     ,
   ,   
 .       
      .



