Support of Fragmentation of RADIUS Packets

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Publisher: IETF
Doc Type: Experimental
Pages: 38
Abstract: The Remote Authentication Dial-In User Service (RADIUS) protocol is limited to a total packet size of 4096 bytes. Provisions exist for fragmenting large amounts of authentication data across multiple packets, via Access-Challenge packets. No similar provisions exist for fragmenting large amounts of authorization data. This document specifies how existing RADIUS mechanisms can be leveraged to provide that functionality. These mechanisms are largely compatible with existing implementations, and they are designed to be invisible to proxies and "fail-safe" to legacy RADIUS Clients and Servers.
Publication Date: 2015-04-01
Status Note: Experimental
DOI: 10.17487/RFC7499
Link: https://doi.org/10.17487/RFC7499
Author(s): Alejandro Pérez-Méndez
Rafael Marin-Lopez
Fernando Pereniguez-Garcia
Gabriel Lopez
Diego R. Lopez
Alan DeKok
Keyword(s): RADIUS, Fragmentation

Latest version of IETF RFC 7499

Document Versions — IETF RFC 7499

▶ IETF RFC 7499 (2015-04-01)

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Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 2865 [Active*]
IETF RFC 3575 [Active*]
IETF RFC 5226 [Superseded*]
IETF RFC 6158 [Active*]
IETF RFC 6929 [Active*]

Bibliographic Reference(s)

IETF.draft-ietf-abfab-aaa-saml-10 — SAML-RADIUS EXTERNAL
IETF.draft-ietf-abfab-arch-13 — ABFAB-Arch EXTERNAL
IETF.draft-ietf-radext-bigger-packets-03 — RADIUS-Larger-Pkts EXTERNAL
IETF RFC 2866 [Active*]
IETF RFC 3579 [Active*]
IETF RFC 4849 [Active*]
IETF RFC 5080 [Active*]
IETF RFC 5176 [Active*]

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IETF RFC 7499, Support of Fragmentation of RADIUS Packets
doi: 10.17487/RFC7499
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Referenced By

IETF RFC 7930 [Active*]
IETF RFC 8044 [Active*]