Here's a brief overview of how DHCP works:
DHCP Discover: The client device sends a broadcast message to discover available DHCP servers.
DHCP Offer: Any DHCP server on the network may respond with an offer message, proposing network configuration settings.
DHCP Request: The client responds to the offer it prefers, requesting the proposed settings.
DHCP Acknowledgement: The server acknowledges the request and assigns the IP address and other network settings to the client.
C. Helper address
A DHCP helper address is configured on routers or switches to forward DHCP broadcast packets from clients on a different LAN to the DHCP server. This allows workstations on one subnet to communicate with a DHCP server on another subnet, which is necessary because DHCP broadcasts are not normally forwarded across network boundaries.
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