Path: utzoo!attcan!uunet!decwrl!ucbvax!IBM.COM!DBARTON
From: DBARTON@IBM.COM
Newsgroups: comp.protocols.tcp-ip
Subject: (none)
Message-ID: <9007301547.AA19807@ucbvax.Berkeley.EDU>
Date: 30 Jul 90 13:38:14 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 20

Date:        Monday, 30 Jul 1990 09:37:25 EST
From:        Daniel Barton <DBARTON@IBM.COM>
To:          <TCP-IP@NIC.DDN.MIL>
Subject: Re: IBM/HP-UX FTP session hangs on PORT command

TCP/IP Version 2 for VM will start allocating ports at port number 1024,
to prevent this problem with the Hewlett Packard product.  Ports
1000-1023 are not restricted, and I am surprised that Hewlett Packard
does not have problems interoperating with other TCP/IP products than
VM.

A more graceful solution to the problem with the current VM code is to
reserve ports 1000-1023 using the PORT statement in the PROFILE TCPIP
configuration file.  This will prevent TCPIP from allocating the ports,
and prevent you from having to issue 24 errors to use up those ports.


Daniel Barton                    (Internet:  dbarton@ibm.com)
TCP/IP Development               (Bitnet:    dbarton@yktvmv.bitnet)
IBM Research Triangle Park, NC