RFC 1108 · HISTORIC · 1991
TUE · 28 JUL 2026
U.S
Overview
RFC 1108, “U.S”, is a Historic document published in November 1991 by S. Kent. It obsoletes RFC 1038. The canonical text is published by the RFC Editor.
Abstract
This RFC specifies the U.S. Department of Defense Basic Security Option and the top-level description of the Extended Security Option for use with the Internet Protocol. This RFC obsoletes RFC 1038, "Revised IP Security Option", dated January 1988. [STANDARDS-TRACK]
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 1108 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1991
- RFC 1099 Request for Comments Summary: RFC Numbers 1000-1099
- RFC 1170 Public key standards and licenses
- RFC 1180 TCP/IP tutorial
- RFC 1198 FYI on the X window system
- RFC 1199 Request for Comments Summary Notes: 1100-1199
- RFC 1200 IAB official protocol standards
- RFC 1201 Transmitting IP traffic over ARCNET networks
- RFC 1202 Directory Assistance service