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IETF RFC 4884
[ACTIVE]

Extended ICMP to Support Multi-Part Messages

Metadata

Publisher
IETF
Doc Type
Standard
Pages
19
Abstract
This document redefines selected ICMP messages to support multi-part operation. A multi-part ICMP message carries all of the information that ICMP messages carried previously, as well as additional information that applications may require. Multi-part messages are supported by an ICMP extension structure. The extension structure is situated at the end of the ICMP message. It includes an extension header followed by one or more extension objects. Each extension object contains an object header and object payload. All object headers share a common format. This document further redefines the above mentioned ICMP messages by specifying a length attribute. All of the currently defined ICMP messages to which an extension structure can be appended include an "original datagram" field. The "original datagram" field contains the initial octets of the datagram that elicited the ICMP error message. Although the original datagram field is of variable length, the ICMP message does not include a field that specifies its length. Therefore, in order to facilitate message parsing, this document allocates eight previously reserved bits to reflect the length of the "original datagram" field. The proposed modifications change the requirements for ICMP compliance. The impact of these changes on compliant implementations is discussed, and new requirements for future implementations are presented. This memo updates RFC 792 and RFC 4443. [STANDARDS-TRACK]
Publication Date
2007-04-01
Status Note
Proposed Standard
DOI
10.17487/RFC4884
Link
https://doi.org/10.17487/RFC4884
Author(s)
Ron Bonica
Der-Hwa Gan
Dan Tappan
Carlos Pignataro
Keyword(s)
ICMP
Latest version of IETF RFC 4884

Document Versions — IETF RFC 4884

  • ▶ IETF RFC 4884 (2007-04-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Amended by:

Normative Reference(s)

Bibliographic Reference(s)

  • Shen, N. and E. Chen, "ICMP Extensions for Routing Instances", Work in Progress, November 2006. EXTERNAL
  • Gont, F., "ICMP attacks against TCP" , Work in Progress, October 2006. EXTERNAL
  • Atlas, A., Bonica, R., Rivers, JR., Shen, N., and E. Chen, "ICMP Extensions for Unnumbered Interfaces", Work in Progress, March 2007. EXTERNAL
  • Bonica, R., Gan, D., Tappan, D., and C. Pignataro, "ICMP Extensions for MultiProtocol Label Switching", Work in Progress, January 2007. EXTERNAL
  • IETF RFC 3022 [Active*]
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IETF RFC 4884, Extended ICMP to Support Multi-Part Messages. Available at https://doi.org/10.17487/RFC4884
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IETF RFC 4884, Extended ICMP to Support Multi-Part Messages. Available at https://doi.org/10.17487/RFC4884

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IETF RFC 4884, Extended ICMP to Support Multi-Part Messages. Available at https://doi.org/10.17487/RFC4884
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<span class="citation"><cite>IETF RFC 4884</cite>, Extended ICMP to Support Multi-Part Messages. Available at <a href="https://doi.org/10.17487/RFC4884" target="_blank" rel="noopener">https://doi.org/10.17487/RFC4884</a></span>

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IETF RFC 4884, Extended ICMP to Support Multi-Part Messages
doi: 10.17487/RFC4884
url: https://doi.org/10.17487/RFC4884
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<cite id="bib-rfc4884">IETF RFC 4884</cite>, Extended ICMP to Support Multi-Part Messages
<span class="doi">10.17487/RFC4884</span>
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