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Supported NAT and SIP Standards

The Junos OS substantially supports the following Network Address Translation (NAT) and Session Initiaion Protocol (SIP) standards. NAT supports SIP dialogs and UDP/IP version 4 (IPv4) transport of SIP messages.

Note:

This is applied to Junos routers equipped with one or more Adaptive Services PICs (both standalone and integrated versions), Multiservices PICs or DPCs, and services cards (SPC) of a security device (i.e. SRX).

Junos OS substantially supports the following RFC and Internet draft.

  • RFC 3261, SIP: Session Initiation Protocol

  • Internet draft draft-mrw-behave-nat66-01.txt, IPv6-to-IPv6 Network Address Translation (NAT66)

The following RFCs do not define standards, but provide information about NAT. The IETF classifies them variously as “Best Current Practice,” “Historic,” or “Informational.”

  • RFC 1631, The IP Network Address Translator (NAT)

  • RFC 2663, IP Network Address Translator (NAT) Terminology and Considerations

  • RFC 2766, Network Address Translation - Protocol Translation (NAT-PT)

  • RFC 2993, Architectural Implications of NAT

  • RFC 3022, Traditional IP Network Address Translator (Traditional NAT)

  • RFC 4787, Network Address Translation (NAT) Behavioral Requirements for Unicast UDP

  • RFC 5382, NAT Behavioral Requirements for TCP

  • RFC 5508, NAT Behavioral Requirements for ICMP

Related Documentation