Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 
 

Supported Packet Filtering Standards

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 2267, Network Ingress Filtering: Defeating Denial of Service Attacks which employ IP Source Address Spoofing

  • RFC 2475, An Architecture for Differentiated Services

  • RFC 2983, Differentiated Services and Tunnels

  • RFC 3260, New Terminology and Clarifications for Diffserv