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Understanding Protocol Support

You can configure the devices running Junos OS to perform stateful network traffic filtering on network packets using network traffic protocols and network fields as described in Table 1.

Table 1: Network Traffic Protocols and Fields

Protocol or RFC

Fields

ICMPv4 - RFC 792, Internet Control Message Protocol version 4

  • Type

  • Code

ICMPv6 - RFC 4443, Internet Control Message Protocol version 6

  • Type

  • Code

IPv4 - RFC 791, Internet Protocol

  • Source address

  • Destination address

  • Transport Layer Protocol

IPv6 - RFC 2460, Internet Protocol

  • Source address

  • Destination address

  • Transport Layer Protocol

TCP - RFC 793, Transmission Control Protocol

  • Source port

  • Destination port

UDP - RFC 768, User Datagram Protocol

  • Source port

  • Destination port

The following protocols are also supported on devices running Junos OS and are a part of this evaluation.

  • IPsec

  • IKE

  • SSH

The following protocols are supported on devices running Junos OS but are not included in the scope of this evaluation.

  • OSPF

  • BGP

  • RIP

The firewall filter terms are evaluated in the order in which they are configured. To configure the order of rule processing, see Firewall Filter Terms.

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