Dynamic Host Configuration Protocol (DHCP) Authentication Option Name Spaces

Created: 2001-05-15
Last Updated: 2025-06-10
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Registries Included Below

Protocol Name Space Values
Algorithm Name Space Values
- configuration token (0) Algorithms
- delayed authentication (1) Algorithms, Delayed Authentication (2) Algorithms, and Reconfigure Key (3) Algorithms
RDM Name Space Values

Protocol Name Space Values

Registration Procedure(s)

IETF Review

Reference

Available Formats

CSV

Value	Description	Reference
0	configuration token	[RFC3118]
1	delayed authentication	[RFC3118]
2	Delayed Authentication (Obsolete)	[RFC-ietf-dhc-rfc8415bis-12]
3	Reconfigure Key	[RFC-ietf-dhc-rfc8415bis-12]
4	Split-horizon DNS	[RFC9704]

Algorithm Name Space Values

Registration Procedure(s)

IETF Review

Reference

configuration token (0) Algorithms

Registration Procedure(s)

IETF Review

Reference

Available Formats

CSV

Value	Description	Reference
0	configuration token	[RFC3118]

delayed authentication (1) Algorithms, Delayed Authentication (2) Algorithms, and Reconfigure Key (3) Algorithms

Registration Procedure(s)

IETF Review

Reference

Available Formats

CSV

Value	Description	Reference
1	HMAC-MD5	[RFC3118][RFC-ietf-dhc-rfc8415bis-12]

RDM Name Space Values

Registration Procedure(s)

IETF Review

Reference

Available Formats

CSV

Value	Description	Reference
0	use of a monotonically increasing value	[RFC3118][RFC-ietf-dhc-rfc8415bis-12]