 2.   TCP/IP_____________________________41_

Fragment Offset (13 ).   .   , 
     .   
   64- .     -
.

Time To Live (TTL) (8 ).  " " .  
     ,   
     , . .   
 ,    .    -
         -
 .         ,
    ,     
   .     
""  .

    .    
  255 ,       -
        1,    -
    .  ,  
      ,  ,
  ,   ,  
 -    ,    "" -
 .

       
   ,     
       (TTL).

Protocol (8 ).   .    , -
   () ,   
 (TCP, UDP  . .).

Header Checksum (16 ).    .  
       -
.       .  -
     , -
   .

      (TTL  .),  -
       . 
       
16-  .      -
  .    ,    -
     .

Source Address (32 ).  .
Destination Address (32 ).  .