Patch-ID# 103630-06
Keywords: security ip tcp retransmit RTO ifconfig arp udp icmp DL_UNITDATA_REQ
Synopsis: SunOS 5.5.1: ip ifconfig arp udp icmp patch
Date: Apr/14/97

Solaris Release: 2.5.1

SunOS Release: 5.5.1

Unbundled Product:

Unbundled Release:

Xref: This patch available for x86 as patch 103631
Xref: This patch available for PPC as patch 103632

Topic: SunOS 5.5.1: ip ifconfig arp udp icmp patch

BugId's fixed with this patch: 1226653 1233827 1240331 1248446 1259279 1262096 4019260

Changes incorporated in this version: 4019260

Relevant Architectures: sparc

Patches accumulated and obsoleted by this patch:

Patches which conflict with this patch: iss_sparc-01 (or higher revs)

Patches required with this patch:

Obsoleted by:

Files included with this patch:

/kernel/drv/arp
/kernel/drv/ip
/sbin/ifconfig
/usr/sbin/ifconfig
/kernel/drv/udp
/kernel/drv/icmp

Problem Description:

4019260 icmp panic on mi_free() in icmp_close() in 2.5.1

(from 103630-05)

1226653 IP can send packets larger than MTU size to the driver

(from 103630-04)

1262096 IP believes it has correctly reassembled a packet, but one fragment not received

(from 103630-03)

1248446 arp cache is not getting updated appropriately

(from 103630-02)

1259279 x86 byte ordering/endian problem in ip & arp for DL_UNITDATA_REQ

(from 103630-01)

1240331 ifconfig of a non-existent virtual interface creates one even as a regular user
1233827 tcp retransmits too much for short connections as seen at web sites

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:
-----------------------------

Refer to the file called SPECIAL_NOTE_IFCONFIG shipped with this patch
for the ifconfig manpage.

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 tcp patch 
(103582-01 or higher) is also required.