RFC 6148

DHCPv4 Lease Query by Relay Agent Remote ID, February 2011

File formats:
icon for text file icon for PDF icon for HTML
Status:
PROPOSED STANDARD
Updates:
RFC 4388
Authors:
P. Kurapati
R. Desetti
B. Joshi
Stream:
IETF
Source:
dhc (int)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC6148

Discuss this RFC: Send questions or comments to the mailing list dhcwg@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF  |  View History of RFC 6148


Abstract

Some relay agents extract lease information from the DHCP messages exchanged between the client and DHCP server. This lease information is used by relay agents for various purposes like antispoofing and prevention of flooding. RFC 4388 defines a mechanism for relay agents to retrieve the lease information from the DHCP server when this information is lost. The existing lease query mechanism is data-driven, which means that a relay agent can initiate the lease query only when it starts receiving data to and from the clients. In certain scenarios, this model is not scalable. This document first looks at issues in the existing mechanism and then proposes a new query type, query by Remote ID, to address these issues. [STANDARDS-TRACK]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.




Advanced Search