Supported Packet Filtering Standards

The Junos OS provides a packet-filtering language that enables you to control the flow of packets being forwarded to a network destination, as well as packets destined for and sent by the router. It substantially supports the following RFCs, which define standards for packet filtering.

• RFC 792, INTERNET CONTROL MESSAGE PROTOCOL - DARPA INTERNET PROGRAM PROTOCOL SPECIFICATION
• RFC 2460, Internet Protocol, Version 6 (IPv6) Specification
• RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
• RFC 2597, Assured Forwarding PHB Group
• RFC 2598, An Expedited Forwarding PHB
• RFC 3246, An Expedited Forwarding PHB (Per-Hop Behavior)
• RFC 4291, IP Version 6 Addressing Architecture
• RFC 4443, Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification

The following RFCs do not define standards, but provide information about packet filtering and related technologies. The IETF classifies them as “Informational.”

• RFC 2475, An Architecture for Differentiated Services
• RFC 2983, Differentiated Services and Tunnels
• RFC 3260, New Terminology and Clarifications for Diffserv

Related Topics

• Packet Filtering Features in the Junos OS
• Accessing Standards Documents on the Internet