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tcp188.exe
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TCP188.TXT
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1994-11-10
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NOVELL TECHNICAL INFORMATION DOCUMENT
TITLE: TCP188.EXE; TCPIP.NLM Update
DOCUMENT ID: TID251012
DOCUMENT REVISION: A
DATE: 20SEP94
ALERT STATUS: Yellow
INFORMATION TYPE: Symptom Solution
README FOR: TCP188.EXE
NOVELL PRODUCT and VERSION:
TCP/IP 2.x
ABSTRACT:
TCP188.EXE contains TCPIP.NLM v2.02M, which supersedes TCPIP.NLM v2.02L. It
provides improved TCP connection stability and resolves a problem with TCP
connections closing before data transfers complete. It also includes new
features including new API support for setting the TCP Keep Alive timer. Read
the full installation instructions before installing. Do not just copy this
patch in!!
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DISCLAIMER
THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO NOVELL. NOVELL
MAKES EVERY EFFORT WITHIN ITS MEANS TO VERIFY THIS INFORMATION. HOWEVER, THE
INFORMATION PROVIDED IN THIS DOCUMENT IS FOR YOUR INFORMATION ONLY. NOVELL
MAKES NO EXPLICIT OR IMPLIED CLAIMS TO THE VALIDITY OF THIS INFORMATION.
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SYMPTOM
1. Loss of TCP connections on networks with a high rate of successive packet
loss.
2. A TCP connection would close before all data had been received, which
resulted in zero length file transfers.
3. If there were duplicate segments, under certain conditions, TCP connections
timed out before completing a file transfer.
4. NetWare 3.11 server abending when the hardware platform was a Compaq
ProSignia and the LAN card a NetFlex with TCPIP v1.0 or v1.01 loaded.
5. Incompatibility with implementations that do not accept FFFFh
interchangeably with 0h in the checksum field.
6. When using the TLI interface, if an application tried to initiate a
connection to a node on a remote network for which there was no route, the
connection request waited forever.
7. TCP/IP incorrectly forwarded directed broadcasts between (sub) networks on
the same media segment.
8. Packet Receive Buffers allocated by applications using the TLI interface to
TCPIP were not always freed in process context. This caused abends with error
messages indicating TCP or the TLI detected an improper connection state or
sequence number.
9. Failure to connect through translation bridges.
New Features
A. Users will now be able to configure static subnet routing using the
/etc/gateways file. (See FEATURE.TXT)
B. ARP packets transmitted on FDDI LANS will now be sent with Ethernet
hardware type (1) instead of LLC 802.2 hardware type (6). ARP packets will be
accepted from FDDI LANs with either hardware type.
C. API has been added so that developers will now be able to set the value of
the TCP Keep Alive Timer through the BSD Socket ot TLI API. (See SDK.TXT)
SOLUTION
Apply TCP188.EXE
Self-Extracting File Name: TCP188.EXE Revision: A
Files Included Size Date Time
\
TCP188.TXT (This File)
PIN.DAT 43577 05-07-93 6:07p
SDK.TXT 5307 09-20-94 10:07a
SNMP.CFG 1057 09-11-92 11:34a
SNMP.NLM 57660 04-06-93 3:44p
INSTALL.TXT 2077 10-11-94 12:44p
AFTER311.NLM 11738 01-26-93 4:45p
FEATURES.TXT 4256 09-19-94 1:21p
FILEDATA.DAT 1851 05-12-93 2:42p
PINSTALL.NLM 10344 05-07-93 6:07p
RELNOTES.TXT 1690 09-19-94 1:06p
TRAPTARG.CFG 1697 03-17-93 8:50a
\TCPIP\
TCPIP.MSG 11126 09-09-94 2:50p
TCPIP.NLM 194163 09-09-94 2:50p
IPCONFIG.NLM 8439 02-22-93 12:35p
Installation Instructions:
1. *DANGER* Do not install TCP188.EXE over TCPIP 2.02w or higher. Only
install TCP188.EXE if you are currently using TCPIP version 1.0, 1.01, 2.02,
2.02h, 2.02i, 2.02j, or 2.02l.
2. *DANGER* Do NOT install new TCP/IP NLM, IPCONFIG NLM, SNMP NLM, or AFTER311
NLM from TCP188.EXE, to a system on which MultiProtocol Router, WAN Links, or
MultiProtocol Router Plus has been installed. Novell's MultiProtocol Router,
WAN Links, and MultiProtocol Router Plus products already contain coordinated
versions of TCP/IP, IPCONFIG, SNMP, and AFTER311 NLMs.
Installing TCP188.EXE, will overwrite the existing MultiProtocol Router and
WAN Links NLMs, and will disable the routing.
3. Follow the instructions in INSTALL.TXT and then read FEATURES.TXT.
Solution Specifics:
TCP188.EXE corrects all of the listed symptoms.
Specific notes follow.
Symptom #1. Ability improved.
Symptom #6. The connection request will now return immediately with the
appropriate error code.
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