ECO NUMBER:	 OSF320-293
                -----------
                PRODUCT:	 Digital UNIX Operating System
                --------
                UPDATED PRODUCT: Digital UNIX Operating System 3.2
                ----------------
                APPRX BLCK SIZE: 80
                ----------------
                APPRX BYTE COUNT: 40710 
                -----------------



DIGITAL

Cover Letter for DEC OSF/1 Version 3.2 ECO Kit OSF320-293 


ECO Kit OSF320-293 Description
-------------------------------

PROBLEM:        (FNO100128)     (Patch ID: OSF320-293)
********
This patch fixes a system panic caused by a Windows95 or WindowsNT system
sending an illegal length ping ( ICMP ) packet.  This patch is MANDATORY.
	    

Installation Overview
---------------------

 This patch contains the following inventory:

/usr/sys/BINARY/ip_input.o              subset OSFBIN320
CHECKSUM: 52852     38  RCSfile: ip_input.c     RCS: 4.4.80.2


 The following instructions assume the OSF320-293.d.tar.Z patch compressed tar
 file is in directory /tmp

 As superuser, do:

# cd /tmp
# uncompress -d OSF320-293.d.tar.Z
# tar xpvf OSF320-293.d.tar

 Patch files and cover letter are in subdirectory /tmp/patches/OSF320-293

 Shutdown the system to single-user mode


 Preserve the old version(s):

#cd /usr/sys/BINARY 
#mv ip_input.o ip_input.o.pre..OSF320-293

 Install the new file(s) and any hard links:

#cd /usr/sys/BINARY 
#cp -p /tmp/patches/OSF320-293/ip_input.o .  



 Assuming that the name of the system is "MYSYS", build a new kernel:

/usr/sbin/doconfig			or
/usr/sbin/doconfig -c MYSYS

 Note the locaton of the newly built kernel reported by doconfig.

 Verify that there is sufficient disk space, then save existing kernel:

cd /
cp -p vmunix vmunix.pre..OSF320-293

 Copy the new kernel:

cp -p /usr/sys/MYSYS/vmunix /vmunix

 To use the new kernel, you must shutdown and reboot the system. 

 Follow your standard system shutdown and reboot procedures so that your users
 and other processes are handled properly.



  Copyright Digital Equipment Corporation 1996.  All Rights reserved.

  This software is proprietary to and embodies the confidential technology
  of Digital Equipment Corporation.  Possession, use, or copying of this
  software and media is authorized only pursuant to a valid written license
  from Digital or an authorized sublicensor.

        This ECO has not been through an exhaustive field test process.
        Due to the experimental stage of this ECO/workaround, Digital
        makes no representations regarding its use or performance.  The
        customer shall have the sole responsibility for adequate protection
        and back-up data used in conjunction with this ECO/workaround.