DHCP Hex Decoder

DHCP automates IP configuration in most networks. Parsing transaction IDs, client IDs, and option sets helps diagnose failed lease assignment and renewals.

Decode DHCP Data

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Raw Decode Output

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Decoded Fields

Payload Hex: N/A

Payload ASCII: N/A

Additional Insights

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About DHCP

DHCP uses BOOTP-style fixed headers plus variable options to negotiate network configuration. Header and option decoding helps trace discover-offer-request-ack flows and lease issues.

DHCP automates IP configuration in most networks. Parsing transaction IDs, client IDs, and option sets helps diagnose failed lease assignment and renewals.

DHCP Header Structure

op/htype/hlen/hops + xid: message role and transaction tracking fields.
ciaddr/yiaddr/siaddr/giaddr: client, offered, server, and relay IPv4 addresses.
chaddr and BOOTP fixed region: client hardware identification.
Magic Cookie + Options: DHCP option list carrying message type and configuration values.

Why Decode DHCP Packets

Decode DHCP/BOOTP packet headers and options from hex into lease negotiation details.