Dynamic Host Configuration Protocol (DHCP)

The Dynamic Host Configuration Protocol (DHCP) is a network management protocol used on UDP/IP networks whereby a DHCP server dynamically assigns an IP address and other network configuration parameters to each device/computer on a network.

• Static vs dynamic IP addressing
• Reservations
• Scopes
• Leases
• Options (DNS servers, suffixes)
• IP helper/DHCP relay

Available DHCP Servers:

• ISC-DHCP (DHCP) Configuration
• Cisco IOS dhcp server

dhclient -r INTERFACE
dhclient -r INTERFACE -v (verbose)

Related files:

• /etc/dhcp/dhclient.conf

• Renew DHCP address in your macOS from command line

Activities

• Configure a DHCP server for your network using isc-dhcp-server package
• Cisco IOS DHCP Server configuration