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Whitepapers HF Radio

STANAG 5066 Application Protocol Series

STANAG 5066 is a NATO Standard providing a link level service for HF Radio, the latest version is Edition 4 of May 2022. The S5066-APP series of documents sets out protocol specifications that operate over STANAG 5066 and communicate with STANAG 5066 servers using the SIS protocol. These protocols provide value add to the core STANAG 5066 service. All of the current proposals are being incorporated into STANAG 5066 Edition 5, and are now shared primarily for historical purposes. New proposals may be added in the future.

This page is an index of the STANAG 5066 SIS Application Protocol (S5066-APP) series. The complete set of documents in this series are listed in the index below.

1. S5066-APP Series Goals

STANAG 5066 is a NATO Standard “PROFILE FOR HF RADIO DATA COMMUNICATIONS” providing a link level service for HF Radio. The latest version is Edition 4 of May 2022.

The S5066-APP series of documents sets out protocol specifications that operate over STANAG 5066 and communicate with STANAG 5066 servers using the SIS protocol. These protocols provide value add to the core STANAG 5066 service.

Isode is managing the S5066-APP series and this index as a community service. The initial S5066-APP documents are written by Isode. Isode encourages other individuals, organizations and vendors to contribute documents to this series.

2. Exchange of Information on STANAG 5066 APPs

The STANAG 5066 APP specifications are all published on this website and can be reached using the links in the table at the bottom of this document.

There is an open mailing list s5066-ep (at) isode.com for discussion of current and new S5066-EPs and S5066-APP specifications. Subscription information on the website.

3. Document Requirements

S5066-APP specifications must be openly available specifications that NATO may incorporate into a future edition of STANAG 5066 or supporting standard. They must be free of IPR or Patent restrictions that would prevent this.

These specifications are intended for implementation and must provide sufficient clear information to be implemented in context of STANAG 5066 Ed4.

S5066-APPs must have a clear publication date, and (apart from this document) a referenceable version number.

S5066-APPs must have a status value which is one of:

  • Experimental: A new proposal for consideration.
  • Implemented: A specification that has at least one implementation that has demonstrated viability of the proposal.
  • Interoperable: A specification with two independent implementations that have been shown to inter-operate.
  • Informational: A document that does not have interoperability considerations.

4. STANAG 5066 ed 5

A goal of the APP series was to provide input to STANAG 5066.   This has succeeded and all of the current APP specifications are included in the (draft) STANAG 5066 Ed5.

5. Index

Status shows either APP series status or the STANAG 5066 Annex which covers this material. Also notes on Isode products.

Number
Title
Status
Last Edit Date
Summary
Download
S5066‑APP1
STANAG 5066 Application Protocol Index
Informational
19‑12‑2017
This page.
N/A
S5066‑APP2
HF Discovery, Ping and Traffic Load
Annex AC based on APP2
22‑12‑2017
This document defines a protocol operating over STANAG 5066 SIS to provide three services to facilitate operation and analysis of STANAG 5066 networks.
Download Paper
S5066‑APP3
SIS Layer Extension Protocol (SLEP)
Annex W based on APP3Implemented in Icon-PEP and M-Link MU Server
24‑08‑2020
This document specifies a layer protocol that can be used over SIS to provide a number of core services that can be used by different applications. This protocol is designed as a replacement for RCOP and UDOP. It also provides compression and a new stream service.
Download Paper
S5066‑APP4
Providing STANAG Services over UDP
Annex Y is based on APP4, APP6 and APP7.  Isode has prototype implementation with published performance results
22‑12‑20218
This protocol specifies an approach of providing the STANAG 5066 service over IP, with an alternate option to work over UDP.
Download Paper
S5066‑APP5
Implicit IP Client over STANAG 5066
Included in Annex Z
3‑10‑2019
This protocol specifies a mechanism for optimized transfer of IPv4 or IPv6 over STANAG 5066.
Download Paper
S5066‑APP6
Providing Control Parameters for STANAG 5066
Annex Y is based on APP4, APP6 and APP7. Isode has prototype implementation with published performance results.
11‑12‑2019
This specification defines a control mechanism to communicate key parameters to a black side STANAG 5066 server in conjunction with use of IP Crypto and “Providing STANAG 5066 services over UDP” (S5066-APP7).
Download Paper
S5066‑APP7
XML Control Messages for STANAG 5066
Annex Y is based on APP4, APP6 and APP7.  Isode has prototype implementation with published performance results.
20‑12‑2021
This specification defines data formats to communicate control information from a black side STANAG 5066 server in conjunction with use of IP Crypto and “Providing STANAG 5066 services over UDP/IP” (S5066-APP4).
Download Paper
S5066‑APP8
HF File Transfer Protocol (HFFTP)
Annex AE is based on APP8
28‑08‑2020
This protocol specifies a simple file transfer protocol operating over SIS Layer Extension Protocol (SLEP) Streaming Service, specified in S5066-APP3.
Download Paper
S5066‑APP9
HF-PEP: STANAG 5066 TCP Performance Enhancing Proxy Protocol

Annex X is based on APP9.

Implemented in Icon-PEP
30‑06‑2020
This document specifies a protocol operating over STANAG 5066 to support TCP PEP (Performance Enhancing Proxy) based operation, to enable efficient operation of TCP based protocols over HF.
Download Paper
S5066‑APP10
HF Location & Information Sharing Protocol
Annex AA is based on APP10
25‑04‑2022
This protocol defines the HF Location and Information Sharing Protocol (HF-LISP), which a protocol operating over STANAG 5066 to provide location and other information about an HF node.
Download Paper
S5066‑APP11
HF Broadcast Protocol (HFBP)
Annex AD is based on APP11
10‑08‑2018
This document specifies “HF Broadcast Protocol” (HFBP), a protocol to support broadcast operation over STANAG 5066, supporting both EMCON and non-EMCON use.
Download Paper
S5066‑APP12
HF Routing Information Protocol (HF-RIP)
Annex AB is based in APP12
05‑07‑2023
This protocol specifies an IP routing protocol for use with HF Networks. It is a distance vector protocol modelled on the well known RIP protocol family.
Download Paper

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