120

 Internet

 TCP/IP        LAN  WAN.
       ,   -
 DHCPNAK (  ),    
  .

    IP-    -
      ,   .

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

(  )

   IP- DHCP-.

  DHCP-,  ,   -
 ,    ,
  DHCP    ,  -
 DHCP-.

 DHCP     UDP.  
DHCP-  DHCP-    67,  
DHCP- DHCP-    68.

 DHCP-   . 2.36 (    ).

16               24               31

(1)	htype(1)	hlen(1)	hops (1)
xid (4)
sees (2)	flags (2)
ciaddr (4)
yiaddr (4)
siaddr (4)
giaddr (4)
chaddr(16)
sname (64)
file (128)
options (312)

. 2.36.  DHCP-