Difference between revisions of "DHCP"
| Line 1: | Line 1: | ||
Dynamic Host Configurations Protocol(DHCP) is a protocol that give an IP to the host with its own IP address, gives it a subnet mask and a default gateway. The process happens in four stages. | Dynamic Host Configurations Protocol(DHCP) is a protocol that give an IP to the host with its own IP address, gives it a subnet mask and a default gateway. The process happens in four stages. | ||
| − | + | ==Stage 1== | |
| − | + | The host that wants to join a network finds a DHCP server, it broadcasts a DHCP discovery message over the network. | |
| − | + | At this point the host has no subnet address or the IP of the DHCP server, so it just broadcasts to all nodes. | |
| − | + | ||
| − | + | ==Stage 2== | |
| − | + | The DHCP server will discover the message that the host is broadcasting and send a reply, which would contain a proposed IP address, | |
| + | network mask, lease time and a transaction ID. Then it would take the details and link it to the new client. | ||
| + | |||
| + | ==Stage 3== | ||
| + | The new client responds to the offer which accepts the configuration parameters. | ||
| + | |||
| + | ==Stage 4== | ||
| + | The server responds to the DHCP request message with a DHCP ACK message, and it confirms the requested parameters. | ||
Revision as of 13:11, 21 May 2017
Dynamic Host Configurations Protocol(DHCP) is a protocol that give an IP to the host with its own IP address, gives it a subnet mask and a default gateway. The process happens in four stages.
Stage 1
The host that wants to join a network finds a DHCP server, it broadcasts a DHCP discovery message over the network. At this point the host has no subnet address or the IP of the DHCP server, so it just broadcasts to all nodes.
Stage 2
The DHCP server will discover the message that the host is broadcasting and send a reply, which would contain a proposed IP address, network mask, lease time and a transaction ID. Then it would take the details and link it to the new client.
Stage 3
The new client responds to the offer which accepts the configuration parameters.
Stage 4
The server responds to the DHCP request message with a DHCP ACK message, and it confirms the requested parameters.
