RFC 4963

IPv4 Reassembly Errors at High Data Rates, July 2007

Canonical URL:
https://www.rfc-editor.org/rfc/rfc4963.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Authors:
J. Heffner
M. Mathis
B. Chandler
Stream:
IETF
Source:
NON WORKING GROUP

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC4963

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Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

IPv4 fragmentation is not sufficiently robust for use under some conditions in today's Internet. At high data rates, the 16-bit IP identification field is not large enough to prevent frequent incorrectly assembled IP fragments, and the TCP and UDP checksums are insufficient to prevent the resulting corrupted datagrams from being delivered to higher protocol layers. This note describes some easily reproduced experiments demonstrating the problem, and discusses some of the operational implications of these observations. This memo provides information for the Internet community.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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