DHCP Flashcards
What is DHCP?
Dynamic Host Configuration Protocol
What is the process when a computer obtains an IP address via DHCP?
DHCP Discover >
DHCP Offer <
DHCP Request >
DHCP Acknowledgement <
DORA
What is a DHCP scope/pool?
A range of IP addresses a DHCP server can assign
What is a DHCP lease?
The time period an IP address is assigned to a DHCP client computer
What is a DHCP reservation?
Reserved IP addresses for specific computers
What are DHCP options?
Default Gateway
DNS Server
What is IP helper/IP relay?
Allows a centralised DHCP server to manage all IP addresses
How does IP Helper/IP relay work?
If the DHCP server is not directly connected to the network, the router will forward DHCP requests along with the subnet scope. If the central DHCP server contains that scope it forwards the response back to the router, which then forwards to the computer
What does the subnet mask determine?
Which portion of the ip address represents the network or host address