Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!think.com!hsdndev!husc6!popvax!conrad
From: conrad@popvax.uucp (M20400@c.nobili)
Newsgroups: comp.sys.mac.comm
Subject: Re: FTP for MacTCP?
Summary: Dynamically assigned IP addresses can be indexed at nameservers...
Message-ID: <6991@husc6.harvard.edu>
Date: 11 Jun 91 04:02:36 GMT
References: <30989@hydra.gatech.EDU> <1991Jun10.025124.27673@ux1.cso.uiuc.edu> <25295@unix.SRI.COM>
Sender: news@husc6.harvard.edu
Organization: Harvard University, Office for Information Technology
Lines: 56

In article <25295@unix.SRI.COM> mxmora@unix.sri.com (Matt Mora) writes:

><1991Jun10.025124.27673@ux1.cso.uiuc.edu>resnick@cogsci.uiuc.edu (Pete Resnick)

>>An FTP client for the Mac is available. XferIt, written by Steve
>>Falkenburg, is available from ftp.apple.com in the dts/mac/hacks
>>directory. It is shareware and a really nice program.

>That's really funny. Because once you get xferit you might not
>be able to use xferit to get files from ftp.apple.com. Apple has
>implemented some kind of ip number lookup to see who you are.
>If your network number is not in some database it will not allow a connection.
>My mac sits behind a gatorbox and my network number is assigned dynamically.
>So there is not entry in the database for my mac. So I have to
>use the sun to get files from apple. Its kind of ironic.

>___________________________________________________________
>Matthew Mora                |   my Mac  Matt_Mora@sri.com
>SRI International           |  my unix  mxmora@unix.sri.com
>___________________________________________________________

Well, that's not quite right.  You _can_ have your dynamic IP addresses and
your Macs in your nameserver's database too.  When I encountered this problem
some months ago with terminator.cc.umich.edu I complained to our campus network
people.  It took a little convincing before they decided they'd humor me by
adding entries at the nameserver(s) for _all_ of our GatorBox's dynamic IP add-
resses.  Needless to say, it worked.

So, if your Macs get dynamic IP addresses like 128.18.x.m through 128.18.x.n,
then you should have entries like:

	128.18.x.m      sri-mac1 sri-mac1.sri.com
	128.18.x.m+1    sri-mac2 sri-mac2.sri.com
			.
			.
			.
	128.18.x.n      sri-mac(n-m+1) sri-mac(n-m+1).sri.com


added to the nameservers that maintain the database of machines at sri.com.  I
think this should solve _your_ (or SRI's) problem.  Note that this is _not_
Apple's problem.  They are just trying to keep tabs on who is taking advantage
of their wonderful new ftp server....

I hope this is helpful.  I posted it here rather than sending it by mail, as I
bet there are others who have had this problem, and perhaps some have been told
that it can't be fixed by their local network gurus as I was first told....

+----   C   o   n   r   a   d       C   .       N   o   b   i   l   i     ----+
|                                                                             |
|         Harvard University          | Internet: conrad@harvarda.harvard.edu |
|       Office for Info. Tech.        |           conrad@popvax.harvard.edu   |
|        Information Services         | BITNET:   CONRAD AT HARVARDA          |
|     Technical & User Services       |           CONRAD AT HARVSPHB          |
|        1730 Cambridge Street        | voice:    (617) 495-8554              |
+----    Cambridge, MA  02138         | fax:      (617) 495-0715          ----+