TCP/IP Package for RT-11, Version 2.40

   The TCP/IP Package for RT-11 provides networking services for
mapped RT-11 systems.  The package is an  assemblage  of  server
and client programs designed to provide Telnet, FTP, Mail, POP3,
LPD, and HTTP services for local and remote users of RT-11  sys-
tems.   The  programs are written in C and RT-11 macro.  A secu-
rity system allows usernames/passwords  and  authorizations  for
each client/server component to be specified for each user.  

   The  sources  for  the  'TCP/IP  Package  for  RT-11' include
header, command, C language, and macro files.  The DECUS C  com-
piler  (with  some bug fixes) and AS assembler are included with
the software distribution to allow the package to be  recompiled
from the supplied sources.  

   The  current  implementation  uses  upto 16 global regions to
support multiple client/server  programs  simultaneously.   Each
client  program  uses 1 region except for the FTP variants (FTP,
FTPL, and RFTP) which  use  an  additional  region  during  data
transfers.   The  network  control  program TCPIP uses one addi-
tional region for fragmented packet reconstruction.  

   The hardware requirements are an RT-11 mapped system (version
5.3 or later) having a minimum of 512k bytes of memory, a  DECNA
(Pro), a DEQNA/DELQA (Q-Bus), or a DEUNA/DELUA (Unibus) ethernet
card with associated transceiver (thick, thin, or CAT-5) and op-
tionally  a  pair  of dedicated serial lines for a remote Telnet

Submitted by Alan R.  Baldwin, 
Kent State University, Kent, Ohio 44242 

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