[Simh] Announcing TCP/IP for RSX-11M-PLUS

Wed Jul 1 17:08:49 EDT 2015

This looks very cool. I wonder when the first web server running this stack
will come online. I also notice the presence of an IRC client. Has anyone
tried to chat from a PDP-11 yet?

Mike
On Jun 30, 2015 7:46 AM, "Johnny Billquist" <bqt at softjar.se> wrote:

> I'm happy to announce a new release of TCP/IP for RSX-11M-PLUS.
>
> Since I'm broadening the scope of the announcement slightly, a more
> complete list of features is included, and not just what changed since
> last. For anyone who is currently running TCP/IP for RSX, I strongly
> encourage you to update to this latest version. Several improvements have
> gone in in the last couple of weeks. Most important change is that there
> now is telnet support, both client and server side.
>
> The TCP/IP for RSX that I've written is sometimes referred to as BQTCP/IP,
> just to make clear that it is a different product than Process Software's
> TCPWARE, or JSA's TCP/IP.
>
> BQTCP/IP is a rather feature rich TCP/IP implementation, which also comes
> with libraries for various high level languages. The API is not compatible,
> even at the source level, with Unix, but on the other hand, if people write
> some code, they will see that it is a very easy API to work with. The
> reasons for the incompatibilities are several, including both resource
> concerns and differences between how RSX works and Unix like operating
> systems.
>
> BQTCP/IP has tried to comply with all relevant RFCs, but I'm sure there
> are corners where it does not do things right. It also does not demand much
> resources. It do require RSX-11M-PLUS with split I/D space, and it has only
> been tested properly on RSX-11M-PLUS V4.6. It should work on any version 4
> release of RSX-11M-PLUS, but there might be a couple of tweaks or fixes
> needed.
>
> BQTCP/IP is distributed in binary form, so very little compilation is
> required to get it up and running. However, pretty much all utilities do
> come with sources. The actual TCP/IP stack sources are not included. I do
> not have a good setup for distributing them in a sane way, and it has had a
> low priority on my list of things to do. But I do not mind distributing the
> sources as a general principle.
>
> All that said, BQTCP/IP current supports the following protocols:
>
> o Ethernet and loopback interfaces.
> o ARP. BQTCP/IP can use Ethernet in co-existance with DECnet, or
>   standalone using the provided Unibus ethernet device driver.
> o IP. The largest IP packets supported are approximately
>   8KB.
> o ICMP.
> o UDP. The largest UDP packets supported are approximately
>   8KB.
> o TCP. The window is approximately 8KB in size, and TCP do
>   manage out of order packets in an efficient way.
>
> BQTCP/IP supports the following applications:
> o DHCP. DHCP can be used to configure interface addresses, network
>   masks, default gateways, DNS servers and NTP servers dynamically.
> o NTP. NTP can be used to set the local time.
> o TELNET. The TELNET server hooks in to the standard TT: terminal
>   driver, and the number of terminals to create is configurable.
>   The TELNET client can be used to connect to other systems.
> o FTP. The FTP server can serve all kind of files to other RSX
>   systems, and can serve text and binary files to any system.
>   The FTP client can retrieve RSX format files from RSX servers,
>   and text, binary and block format files from any system.
> o TFTP. The TFTP server and client can be used for simpler file
>   transfer operations.
> o RWHOD. RWHOD is a program that reports current users and uptime
>   from RSX, for other systems to collect.
> o IRC. IRC is a program to communicate with other users around
>   the world.
> o IRCBOT. IRCBOT is a small example robot program connecting to IRC
>   and performing a service for IRC users.
> o PCL. PCL is a protocol for printing, used by HP (and other) printers
>   over a network. The PCL implementation in BQTCP/IP appears as a
>   print symbiont, which you can create a printer queue for.
> o WWW. WWW (or World Wide Web) is a service that can present hypertext
>   information to clients. The WWW server in BQTCP/IP also supports CGI,
>   which makes it possible to create dynamic content.
> o DNS. BQTCP/IP have DNS implemented as an ACP, that anyone can query
>   to get translations between IP addresses and domain names. It also
>   supports different users using different name servers, or private
>   translations.
> o SINK. A standard TCP service.
> o ECHO. A standard TCP service.
> o DAYTIME. A standard TCP service.
> o QUOTD. A standard TCP service.
> o IDENTD. A standard TCP service.
>
> BQTCP/IP also have automatic IP spoof detection and prevention.
>
> Additional tools are IFCONFIG, PING, TRACEROUTE, NETSTAT as well as two
> new pages for RMD.
>
> High level language libraries exists for BASIC+2, PDP-11 C and FORTRAN-77.
>
> I'm sure I have forgotten a thing or three, but that's a fairly
> comprehensive list.
>
> The documentation is a weak point, but there is hopefully enough
> documentation to get people running, and I am happy to answer any
> questions, or give support if needed. BQTCP/IP is already running on the
> internet, and have been for a while. People who are curious to check it out
> can ether look at http://madame.update.uu.se/, or telnet to telnet://
> madame.update.uu.se and login as user GUEST with password GUEST, or use
> ftp against ftp://madame.update.uu.se. Anonymous ftp account exist.
>
> As usual, the distribution is available from:
> ftp://madame.update.uu.se/bqtcp.dsk
> ftp://madame.update.uu.se/bqtcp.tap
> ftp://ftp.update.uu.se/pub/pdp11/rsx/tcpip/tcpip.dsk
>
> The .tap file is an RSX virtual tape. It is only possible to download and
> use if you are using FTP from anther RSX system and fetch the file. The
> .dsk files are virtual RL02 images that are useful both from within RSX as
> well as through emulators.
>
> The documentation is also available through ftp on Madame, or also at
> http://madame.update.uu.se/tcpipdoc
>
>     Johnny
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