| RFC | Status | Reference | Notes |
|---|---|---|---|
| 2827 | Best Common Practice | Ferguson, P.; Senie, D. (May 2000). Network Ingress Filtering: Defeating Denial of Service Attacks which employ IP Source Address Spoofing. IETF. doi:10.17487/RFC2827. BCP 38. RFC 2827. | |
| 2851 | Obsolete | M. Daniele; B. Haberman; S. Routhier; J. Schoenwaelder (June 2000). Textual Conventions for Internet Network Addresses. Network Working Group. doi:10.17487/RFC2851. RFC 2851. | Obsoleted by RFC 3291. |
| 2860 | Informational | B. Carpenter; F. Baker; M. Roberts (June 2000). Memorandum of Understanding Concerning the Technical Work of the Internet Assigned Numbers Authority. Network Working Group. doi:10.17487/RFC2860. RFC 2860. | |
| 2873 | Obsolete | X. Xiao; A. Hannan; V. Paxson; E. Crabbe (June 2000). TCP Processing of the IPv4 Precedence Field. Network Working Group. doi:10.17487/RFC2873. RFC 2873. | Obsoleted by RFC 9293. |
| 2874 | Historic | M. Crawford; C. Huitema (July 2000). DNS Extensions to Support IPv6 Address Aggregation and Renumbering. Network Working Group. doi:10.17487/RFC2874. RFC 2874. | Updated by RFC 3152, 3226, 3363 and 3364. Updates RFC 1886. |
| 2890 | Proposed Standard | G. Dommety (September 2000). Key and Sequence Number Extensions to GRE. Network Working Group. doi:10.17487/RFC2890. RFC 2890. | |
| 2894 | Proposed Standard | M. Crawford (August 2000). Router Renumbering for IPv6. Network Working Group. doi:10.17487/RFC2894. RFC 2894. |
