[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference turris::digital_unix

Title:DIGITAL UNIX(FORMERLY KNOWN AS DEC OSF/1)
Notice:Welcome to the Digital UNIX Conference
Moderator:SMURF::DENHAM
Created:Thu Mar 16 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:10068
Total number of notes:35879

8169.0. "ftp UNIX 4.x to MVS broken?" by CSC32::I_WALDO () Wed Dec 11 1996 15:34

T.RTitleUserPersonal
Name		DateLines
8169.1different addressesSMURF::DUSTINThu Dec 12 1996 10:2912
8169.2thanks, but!CSC32::I_WALDOThu Dec 12 1996 14:4615
8169.33.2g ftp works for 4.0CSC32::I_WALDOThu Dec 12 1996 16:042
8169.4please enter a QARSMURF::DUSTINFri Dec 13 1996 10:1710
8169.5quite the same problemAUBER::DORNANOFri Jan 10 1997 11:1527
8169.6SMURF::MENNERit's just a box of Pax..Fri Jan 10 1997 22:204
8169.7Can use OSF400-144 in v4.0b?DEKVC::SANGYEOBLEETue May 06 1997 22:486
    The same problem occurs in unix v4.0b.
    I'd like to know the OSF400-144 patch can use in v4.0b.
    If not, please tell me the location of patch for this problem 
    in v4.0b.
    
    Thanks,
8169.8Patch location.VAXRIO::VITORWed May 07 1997 13:0774
	Hello,

	I had the same problem. The patch you are looking for can be found at 
guru::"patches/osf/v4.0b"  (decnet)    or 
http://www-rle.zuo.dec.com/Topic/PATCH/patch.html

	Hope this helps.
	Regards,
	Vitor.


	This has been extracted from the README file :

============================ << START OF PATCH >> ==============================

NEW PatchID:  38.00
PATCH ID: OSF410-400144     SUBSET(s): OSFCLINET410

********************************************************************************

Recommendation - install on all Digital UNIX systems.

PROBLEM:        (MCPMC0L3C/QAR 50410)   (Patch ID: OSF410-400144)
********
Problem -  If you ftp to an IBM MVS system using the IP address, the IBM system
will refuse the connection.

This problem can be encountered on any system that validates TOS (Type Of 
Service) requests if the file /etc/iptos is not used on the client.

How to recognize this problem:

If you attempt to ftp to any system that validates TOS requests, you may see 
the following:

ftp> open <ip address of dest host> 
Connected to <ip address of dest host> 
220-FTPSERV1 IBM MVS V3R1 at SAC1, 12:08:49 on 1996/12/11
421 Service not available, remote server has closed connection

but it may work if you give the hostname of the system instead of the
ip address.

If you were running tcpdump, tracing the connection, you would see

12:26:20.076128 irvingirving.cxo.dec.com.2296 > mvssac1.rac.mci.com.ftp: S
1419648000:1419648000(0) 
win 32768 <mss 1460,nop,[|tcp]> (DF)
12:26:20.176656 mvssac1.rac.mci.com.ftp > irvingirving.cxo.dec.com.2296: S
447244900:447244900(0) 
ack 1419648001 win 65535 <mss 4312>
12:26:20.176656 irvingirving.cxo.dec.com.2296 > mvssac1.rac.mci.com.ftp: .
ack 1 win 33580 (DF)
12:26:20.274256 mvssac1.rac.mci.com.ftp > irvingirving.cxo.dec.com.2296: P
1:60(59) ack 1 win 65535
12:26:20.366000 irvingirving.cxo.dec.com.2296 > mvssac1.rac.mci.com.ftp: .
ack 60 win 33580 (DF) 
[tos 0xa6]  <<<<<----NOTICE THIS!!!
12:26:20.461648 mvssac1.rac.mci.com.ftp > irvingirving.cxo.dec.com.2296: R
447244960:447244960(0) win 0

In the above trace, the connection is rejected because the TOS (Type Of
Service) field contains an invalid value.  This problem can be avoided by
using a /etc/iptos file as noted in the man page.  However, the TOS field
should never have this invalid value and that is the reason for the patch.


FILE(s):

/usr/bin/ftp                    subset OSFCLINET410
CHECKSUM: 63471    120  RCSfile: ftp.c  RCS: 4.2.35.2
-----------------------------------------------------