READ.ME for LATEST41.EXE

Note: The self-extracting zip file may be distributed as LATEST41.EXE or
      IC22628.EXE. If you receive the file with the name IC22628.EXE, please
      substitute "IC22628" for "LATEST41" in the "Installation Instructions"
      below.



Description:
------------

This package provides replacement modules for the "TCP/IP Version 4.1 for OS/2"
tcp/ip stack and DLL's. Note that service is cumulative. See the Change History
below for the APARs applied to the stack and DLL's since "TCP/IP Version 4.1 for
OS/2" GA.


Prerequisites:
-------------

You must have the following installed on your system:
  - "TCP/IP Version 4.1 for OS/2", component id 5639B1700, R530
  - "MPTS Version 5.30", WRx86xx


Pre-Installation Instruction:
----------------------------

The following must be done one time only to avoid tcp/ip problems:
If the file c:\tcpip\archive\dll\tcpipdll.dll exists, please erase it.
(Substitute the drive letter on which \TCPIP\ is installed for "c:")
This is a downlevel DLL which may replace the current DLL.



Installation instructions:
--------------------------

1. If you haven't done so already, you should create a temporary directory
   and decompress (unzip) LATEST41.EXE into it. Enter the following:
      LATEST41 .
   No subdirectories are created.

2 - 7. Skip these steps. They may be needed in a future fix when DLLs are
       included.

8. The files listed in this directory should replace ANY EXISTING FILES of
   the same name currently on your system.  DO NOT create a subdirectory for
   these files and simply place it in your PATH in CONFIG.SYS.  If you do,
   it will create multiple copies of DLL'S, and EXE's etc, which could cause
   erratic behavior of your system.

9. Place the files in directories as listed in the "Contents" section below.
   Note that "y:" is the drive on which MPTN was installed, and "x:" is
   the drive on which TCP/IP was installed (x: and y: are usually the same).

10. Shutdown and reboot your system.

11. Your system should now start normally and all file changes will be in
    effect.

12. When your system has completed startup, you can verify that the new
    TCP/IP stack is running by issuing the following command from an OS/2
    command prompt:

       INETVER

    The following should be displayed:

      Version numbers of TCP/IP protocol drivers:
         SOCKETS.SYS: 5.3008
         AFOS2.SYS:   5.3001
         AFINET.SYS:  5.3006



Contents
--------

The following is a list of the files contained in LATEST41.EXE and
the directories in which they should be placed:

y:\mptn\protocol

 12-11-98  2:56p    297984           afinet.sys
 12-11-98  1:25p    197632           aflean.sys
 12-11-98  1:46p    111616           sockets.sys
 12-11-98  1:47p     13312           afos2.sys

y:\mptn\bin

 1-29-98   2:22p    121970           ipformat.exe


Change History
---------------

   APAR     Module(s)    Version   Abstract
  -------  ----------    -------   ---------------------------------------------
  IC22628  sockets.sys    5.3008   DSOM application fails on 32-bit stack.

  40752    afinet.sys     5.3006   Re-adjust MTU size for DIX packets.

  40724    afinet.sys     5.3005   Trap E due to invalid parameter passed
                                   by NDIS to 'transmitconfirm()'.

  IC21956  sockets.sys    5.3007   accept() returns EINVAL instead of EINTR.

  40654    afos2.sys      5.3001   int 3 when sockets.sys and afinet.sys
                                   missing.

  40604    sockets.sys    5.3006   Changes to socket structure.
           afinet.sys     5.3005
           afos2.sys      5.3001

  (Note : This defect introduced changes to the include files, and hence
          all the three - sockets.sys,afinet.sys & afos2.sys that are compiled
          with the new include files have to be used together)

  40575    afinet.sys     5.3004   Retrofit loopback on context hook.

  40476    sockets.sys    5.3005   Removing unnecessary checks before 'soabort'.

  40471    sockets.sys    5.3004   Service new socket request after droping a
                                   random connection when SYNDEF=ON

  IC20489  afinet.sys     5.3003   Trap E when PING to subnet or broadcast
                                   address.

  IC19931  ipformat.exe            IPFORMAT FOR 802.3 FAILS TO FORMAT IPTRACE.DMP CORRECTLY

  IC19792  sockets.sys    5.3003   8235 DIALS DIALOUT CLIENT FAILS TO GAIN 8235 CONNECTION WHEN
                                             USED WITH TCPIP 4.1 SLIPPM CONNECTION

  IC19768  sockets.sys    5.3002   GETTING A TRAP00E WHEN DOING A RESTORE WITH ADSM.

  IC19730  afinet.sys     5.3002   LOOPBACK PERFORMANCE PROBLEM
           aflean.sys

  IC19488  afinet.sys     5.3001   TRAP 000E WHEN USING A TCPIP FUNCTION AFTER
           aflean.sys              INSTALLATION OF FI 1.2, JAVA 1.1.1, MPTS WR00600
                                   AND TCPIP 4.1


  IC19271  sockets.sys    5.3001   POWERWEB SERVER CANNOT BE STARTED
                                   NOTE: This APAR is combined with IC19270. If
                                   APAR IC19270 is installed, there is no need to
                                   install this APAR.


  IC19270  sockets.sys    5.3001   DATA PACKETS GREATER THAN 4K SENT TO YOURSELF
                                   ARE NOT FREED
                                   NOTE: This APAR is combined with IC19271. If
                                   APAR IC19271 is installed, there is no need to
                                   install this APAR.