how does dhcpv4 work
CCNA
Understanding the DHCPv4 Message Format
Every DHCPv4 exchange — Discover, Offer, Request, Acknowledge — rides inside the same fixed DHCPv4 message format, inherited from BOOTP. Once you know what the message format is, what each field actually holds, and why, reading a DHCP packet capture stops being guesswork and starts being straightforward: the fields tell you exactly what stage of...
CCNA
Understanding DHCPv4: A Complete Guide
Every device on a network needs a unique IP address to communicate. Static addressing — manually typing an IP into a router, server, or printer — works fine for devices that never move and never change. It falls apart fast for laptops, phones, and anything else that joins and leaves the network constantly. That’s the...