5

! DHCP (Dynamic Host Configuration Protocol) , . DHCP IPv4 (DHCPv4) , IPv6 (DHCPv6) . IPv4. .


DHCP 200


, , IP-. IP- , , , ( ) . , , . , , IP-.

, . IP- , . , , .

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

DHCPv4 IPv4 . DHCPv4 . DHCP .

DHCPv4 IP-:

  • (Manual Allocation) - IPv4- , DHCP IPv4- .
  • (Automatic Allocation) - DHCPv4 IPv4- , . (lease), .
  • (Dynamic Allocation) - DHCPv4 IPv4- , , .

DHCP . DHCP , () . 24 . , , .


DHCP

DHCPv4 /. DHCPv4, IPv4- . IP- DHCP, . , , , , . DHCP , .

:

  1. ( ), . (broadcast) DHCPDISCOVER MAC- DHCPv4. , , DHCPDISCOVER IPv4 -255.255.255.255. IPv4, IPv4- - 0.0.0.0.
  2. DHCPDISCOVER DHCPv4 . IPv4 , 2 3 .
  3. DHCPv4- DHCPDISCOVER, IPv4- . ARP, MAC- IPv4- DHCP DHCPOFFER , (unicast), MAC- MAC- .
  4. DHCPOFFER , DHCPREQUEST. , . , DHCPREQUEST , , . DHCP , DHCPREQUEST , .
  5. DHCPREQUEST ICMP- , , ARP , DHCPACK-. DHCPOFFER, . DHCPACK, ARP . ARP , , IPv4 .

, :

  1. , DHCPREQUEST DHCP , . DHCPACK , DHCPREQUEST, DHCPv4 .
  2. DHCPREQUEST , DHCPACK

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