Formally Deprecating Some IPv4 Options

This specification has been revised 4 times since RFC 1385 (1992). Each document below formally obsoleted the one before it; the versions still in force are listed first.

Revision timeline

  1. RFC 1385 (1992)
  2. RFC 1393 (1993)
  3. RFC 1475 (1993)
  4. RFC 1770 (1995)
  5. RFC 6814 (2012)

Current version — implement against this

Superseded versions — historical reference only

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 6814 (November 2012).