□ DHCP(Dynamic Host Confinuration Protocol) : Protocol for dynamically assigning IP addresses.
□ DHCP IP address allocation procedure
○ DHCP Discover
- Meaning : it is message that client is looking for a DHCP server
- How: it broadcast client's MAC address
- How: it broadcast client's MAC address
○ DHCP Offer
- Meaning : It is message that the DHCP server provides network information, including IP addresses to client.
- How: If the "Broadcast Flag" value is 1, broadcast or(value is 0) unicast
- How: If the "Broadcast Flag" value is 1, broadcast or(value is 0) unicast
○ DHCP Request
- Meaning : It is request message that the client uses the IP address assigned.
- How: broadcast
- How: broadcast
○ DHCP Ack
- Meaning : IP address assignment completion
- How
- How
ใDHCP server stores the MAC address, IP address of the client
ใServer retransmits the IP address to the client(Broadcast or Unicast)
ใThe message received client" set the IP address
ใServer retransmits the IP address to the client(Broadcast or Unicast)
ใThe message received client" set the IP address