Internet & networking · 1981
RFC 791: Internet Protocol
Request for Comments 791 · Excerpt · September 1981
Section 3.1 of the Internet Protocol specification, which defines each field of the IPv4 header and its options.
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- License
- Free reproduction (RFC Editor)
- Source
- rfc-editor.org
- Retrieved
- 26 September 2026
- Language
- English
- Rights holder
- Jon Postel, Editor, Information Sciences Institute, 1981
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Edition
RFC Editor plain-text edition. Excerpt: section 3.1 in full (3238 words, checked word for word), with the preface and the three references that the section cites; page headers and footers left out, drawings reproduced unchanged.
Rights
All RFCs may be freely reproduced and translated (unmodified).
RFC Editor, https://www.rfc-editor.org/faq/. RFC 791 itself carries no copyright notice.
