Internet. ARP, RARP.
Internet
Internet , . - , , . Internet - , . , backbone. .5.44 backbone. IP - .
Internet . , . 64 1500. Internet . .
IP
.5.45 IP . 20 60.
Version - .
IHL - ( 5).
Type of service - : : e.g. , , ..
Identification - .
DF - . 1, .
MF - . .
Fragment offset - .
Time to live - ( 255 .).
Protocol - (TCP, UDP etc.).
Option - . .5.46.
IP
Internet IP . . .5.47 IP . A 126 16 , B - 16382 64 , C - 2 256 , D - . NIC - Network Information Center. , .5.48, . 0 .
. . . . , , , .
|
|
, , . . - , . NIC - . .5.49 .
(, 0) IP (_, ) IP . . . IP , . . - , . , (PTO). , , . . (_, ,0) (_, _, ). , .5.49.
Internet IP, , , , ICMP, ARP, RARP, BOOTP.
Internet Control Message Protocol.
Internet ICMP. , .5.50.
Address Resolution Protocol - .
Internet IP , , IP . , , , , Ethernet . 48 . 32 IP.
32 IP , , Ethernet ? .5.51.
1 2, DNS (Domain Name Service - - 7) IP . , IP Ethernet , IP . . , - ARP . Internet .
. - , , - proxy ARP. . - , . , .
Reverse Address Resolution Protocol (RARP) -
- Ethernet , IP . , , . IP ?
|
|
RARP : Ethernet , IP ? RARP .
- , . BOOTP. RARP, BOOTP UDP , . , IP .