DORA - Bao108/SYS-255 GitHub Wiki

DORA

DORA is the 4-way DHCP handshake

DHCP operates at the Application Layer 7 (OSI model) & uses layers 2-3 (Data-link & Network)
Letter Name Purpose
D Discover client(device) broadcasts a message across the local network to find an available DHCP server
O Offer The DHCP server responds with an available IP address and lease duration.
R Request The client responds to confirm and accept the offered IP address
A Acknowledge The DHCP server finalizes the allocation and sends confirmation, allowing the client to use the IP address on the network
Wireshark Filter

udp.port==67