Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!VAX.FTP.COM!jbvb
From: jbvb@VAX.FTP.COM ("James B. Van Bokkelen")
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re: NETBIOS over ethernet/tokenring
Message-ID: <9007131737.AA12886@vax.ftp.com>
Date: 13 Jul 90 17:37:53 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: jbvb@vax.ftp.com
Organization: The Internet
Lines: 21

>Does anyone know where I can get the packet layouts for NETBIOS on tokenring?
>Ie the data packet formats which are inside the token ring data blocks?
>Are there any standards for NETBIOS over ETHERNET?

Alas, there are many.  NETBIOS can mean either or both of: 1) A
DOS/Intel Application Programming Interface to a session-layer
network service, or 2) a transport protocol devised by a manufacturer
to work under the API.

RFCs 1001/1002 describe how TCP/IP can be used as a transport for a
NETBIOS API, and give packet formats.  There is at least a proposed
standard for how the API should use OSI TP transport.  A great number
of manufacturers (Novell, 3Com, Banyan, etc, etc) have implemented
their own proprietary transport hacks, based on XNS, or 802.2 LLC2,
or completely homebrew.

IBM's 802.5 NETBIOS packet encapsulation is mostly explained the by
IEEE 802.2 document: study LLC2.

James B. VanBokkelen		26 Princess St., Wakefield, MA  01880
FTP Software Inc.		voice: (617) 246-0900  fax: (617) 246-0901