This archive contains Postscript versions of many documents relevent to implementing AX.25 and its associated protocols. Some of these documents have been used for the basis of the Linux implementations and thus have been shown to be "correct", or at least reflecting current usage. The documents that are included in this first release are: 6pack.ps A definition of the 6PACK TNC control protocol. It gives more control than KISS at the expense of more processing in the host computer. ax25.ps A version of the official ARRL AX.25 V2.0 specification. The AX.25 within Linux is based on AX.25 V2.1 which removes the sending of FRMRs amongst other simplifications. extended-ax25.ps The specification of the extended form of AX.25 as devised by Rob PE1CHL. This is based upon the extended mode of LAPB, standard LAPB was the basis for the original AX.25 specification. hexipus.txt Information by Dave Brown N2RJT about the wiring of the Linux serial port to a Hexipus for use with many TNCs running the NET/ROM serial protocol. kiss.ps A copy of the original KISS definition as published in the ARRL CNC papers. multi-kiss.ps The G8BPQ extensions to the KISS protocol to provide more control over TNCs than standard KISS. These were published in a later ARRL CNC papers. Compare and contrast with the approach taken by 6PACK. netrom.ps A copy of the Software 2000 documentation for the NET/ROM protocol. This does not include the information about the G8BPQ extensions to the protocol nor some of the other extensions extant in various contries. yappxfer.doc The specification of the standard YAPP protocol as specified by Jeff WA7MBL. This does not include the extensions that are used with the F6FBB nmailbox. yappxfer.pas A Pascal implementation of the basic YAPP protocol. Many of the above documents appeared in the ax25-utils directory "docs" at one time. I hope to build this up to be the prime source of protocol information for the amateur packet world. I hope to extend this archive in due course and would welcome detailed documents in English for the following: DAMA/Optima FlexNet ROSE If you have something that you would like to have included in the archive email me at g4klx@g4klx.demon.co.uk. Jonathan