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Path: utzoo!mnetor!uunet!husc6!yale!cmcl2!brl-adm!umd5!uvaarpa!mcnc!decvax!decwrl!pyramid!oliveb!sun!gorodish!guy
From: guy@gorodish.Sun.COM (Guy Harris)
Newsgroups: comp.sys.ibm.pc,comp.protocols.tcp-ip.ibmpc,comp.dcom.lans
Subject: Re: Need help writing 3COM 3C501 driver for PC-AT (long)
Message-ID: <38764@sun.uucp>
Date: 13 Jan 88 21:22:25 GMT
References: <3393@bcsaic.UUCP> <1437@phoenix.Princeton.EDU>
Sender: news@sun.uucp
Lines: 31
Keywords: TCP IP PC

> There are a number of fairly complete implementations of TCP/IP for IBM
> PC's (XT, AT also).

The glossy for the Sun PC-NFS Release 2.0 claims that it supports TCP and UDP,
which is probably true as NFS uses Sun RPC on top of UDP and TELNET, FTP,
"rsh", and "rcp" (which come with PC-NFS) use TCP.  It also claims that it
supports ICMP - I don't know what level of support is provided - ARP and RARP
(RARP client, one would presume).  I seem to remember a claim from somebody
here that it provides interfaces to TCP and UDP that users can use for
applications; they probably look like 4BSD socket calls, if they exist.  It
definitely provides an RPC/XDR implementation that applications can use.

The glossy also claims that it prvides FTP, a printer interface (which probably
permits a PC to spool to the 4.[23]BSD print spooler), and "rsh" and "rcp" in
some form.

According to the glossy, PC-NFS 2.0 includes drivers for the 3C501 as well as
the Ungermann-Bass NIC and the Micom-Interlan NI5010.

The glossy indicates that "Portions of the software in PC-NFS were derived from
Locus Computing Corporation's PC-Interface and MIT's PC-IP products"; I think
the redirector was what came from PC-Interface, and I presume that some or all
of the Internet protocol implementation came from PC-IP.

I don't know how much it costs.  I also don't know what C compiler was used or
what C compilers it interfaces with; I doubt that source is generally
available, so if somebody wants hints on how to talk to one of the PC Ethernet
cards it's probably the wrong place to look.
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy@sun.com