 2,   TCP/IP___________________________45_

Ethernet destination address.  .
Ethernet source address.  .

Type Code.   Ethernet-.     
      (TCP/IP, DECnet
 . .).        .  IP -
   0800.

Ethernet Checksum.      .  
       -
.          -
      .

  ,    Ethernet,  1500
.   Ethernet-   
    .

   Ethernet- : RFC-894, RFC-895,
RFC-948, RFC-1042.

   Ethernet
 IP-:  ARP  RARP,
, 

    ,    IP- 
Ethernet-  ,   Ethernet-  
IP- .

  IP-  Ethernet-   ARP
"(Address Resolution Protocol,   ).  -
     IP-,     -
    IP  Ethernet.  
Ethernet-  IP-   RARP (Reverse Address

Resolution Protocol,    ).

,..$ -! 

  ,   ARP-,  RARP-   IP.
        -
    Ethernet.

    ARP   -
 .      
    .  ,  ARP-,
 .,         
.      IP-  Ethernet- . 
  IP-    Ethernet-,   
 IP-,     
Ethernet- .     ARP-: