 2.   TCP/IP 39

 ,     ,
    ,  IP ,  
    ,    
  ,    .   
     ,    
    .

  IP-,    , 
IP  ,    IP-    
    .   IP ,  IP- -
  ,       -
,    IP-.

(^  ^

 ,   IP-   
  ,     "'"""   "~     '-~-

,     IP-  
   ,    IP-
(. 2.6).

  IP-

048                16      20

31

Version	IHL	Type of Service	Total Length
Identif	cation	Flags	Fragment Offset
Time to Live	Protocol	Header Checksum
Source Address
Destination Address
Options	Padding

. 2.6.  IP-

Version (4 ).  .     -
 Internet-.    4.

IHL (4 ).    IP- (Internet Header Length)  32-
 .        5.

Type of Service (TOS) (8 ).   .    
   , . . 