Patch-ID# 103581-01
Keywords: telnet ftp single user tcp NDD tcp_bind web rtt_dx RTO FIN
Synopsis: SunOS 5.5.1_x86: /kernel/drv/tcp patch
Date: Jul/12/96

Solaris Release: 2.5.1_x86

SunOS Release: 5.5.1_x86

Unbundled Product:

Unbundled Release:

Xref: This patch available for SPARC as patch 103582
Xref: This patch available for PPC as patch 103583

Topic: SunOS 5.5.1_x86: /kernel/drv/tcp patch

BugId's fixed with this patch: 1206850 1233827 1248840 1249829

Changes incorporated in this version: 1206850 1233827 1248840 1249829

Relevant Architectures: i386

Patches accumulated and obsoleted by this patch:

Patches which conflict with this patch:

Patches required with this patch:

Obsoleted by:

Files included with this patch:

/kernel/drv/tcp

Problem Description:

1249829 connection times out if remote only sends zero-windows

	A connection that sends a zero window for more than
        tcp_ip_abort_interval interval will have the connection terminated.

1248840 TCP socket can't handle FIN pkt from client surely (deadlock)
1233827 tcp retransmits too much for short  connections as seen at web sites
1206850 Solaris 2.4, telnet/ftp error in single user mode.

Patch Installation Instructions:
--------------------------------
Refer to the Install.info file within the patch for instructions on
using the generic 'installpatch' and 'backoutpatch' scripts provided
with each patch. Any other special or non-generic installation
instructions should be described below.

Special Install Instructions:
-----------------------------

If the reason to install this patch is to fix bugid 1233827
(tcp retransmits too much for short connections as seen at 
web sites), the 2.5.1 ip patch (103631-01 or higher) is also
required.