Networking Made Simple:
© 1999 Lawrence I. Charters
Washington Apple Pi Journal, November/December
1999, pp. 35-36, reprint
Episode XXI: Crossover
Q: I have a Power Macintosh
G3 and a StarMax 3000/160, and I want them to talk to each
other. Someone told me they both needed an Ethernet card, so
I went out and bought two [name brand] 10/100BASE-T
PCI cards. Now what?
A: Most StarMax computers
shipped with an Ethernet card, and all Power Mac G3s have
built-in Ethernet, so take at least one of the cards back to
where you bought it and get a refund. Use the refund to buy
a 10BASE-T Ethernet hub.
Q: [Pant, pant] OK,
I got the refund. But they said what I really needed was a
crossover cable, so they sold me one of those. They said it
A: There are things that
are cheap, and there are things that are easy, and there are
things that are flexible. Aside from chewing gum, few things
are all three. Take the crossover cable back and get an
Ethernet hub. Oh, and get two CAT5 Ethernet 10BASE-T cables.
Q: [Pant, pant,
pant] OK, I did that. It cost more money than the
crossover cable. It better be worth it.
A: It is.
Q: Now what?
A: Plug the power cord of
the Ethernet hub into power. If your hub has blinky lights
(most do) a green light should come on, somewhere. Now plug
one end of both cables into the hub. Then plug the other end
of one cable into your Power Mac G3 and the end of the
second cable into your StarMax.
Q: Plug it in where?
A: On the hub, you should
find three or more jacks that look like oversized telephone
cable jacks. Plug one end of each cable into a jack. The
cable can only go in one way (unless you use way, way too
On the back of both your Power Mac G3 and your StarMax,
you should find a single jack that looks just like the ones
on the Ethernet hub. Plug the other end of the cable into
this jack. It is usually labeled (on Macs) with an icon that
looks something like
Q: Aha! OK, I did that, but
now I have some leftover jacks on the Ethernet hub.
A: That's fine.
Q: Should I plug a
telephone cord into one of the leftover jacks?
A: No! Never plug a
telephone cord into an Ethernet jack. Never.
Q: Just asking. Are the
computers talking to each other yet?
A: Not unless you've told
them to do so. Let's assume you haven't and go through the
1) On the Power Macintosh G3, go to the Apple Menu,
then Control Panels, then AppleTalk.
2) Set the Connect via: menu to Ethernet, then
close the AppleTalk control panel.
3) Now go to the Apple Menu, then Control Panels, then
4) Under Network Identity, type your own name as Owner
5) Type something as a password. Remember what you
type. Do not leave the password blank.
6) Type in a name for the computer. Call it whatever
you want. Close the File Sharing control panel.
Then repeat these steps on the StarMax.
Q: This worked on the G3,
but the StarMax says there is already a computer named "Lady
Godiva." How does it know that?
A: I'm guessing you named
the G3 "Lady Godiva," right? You can name the StarMax
anything you want as long as it is different from the
Q: OK. Now what?
A: On the Power Mac G3, go
to the Apple Menu, Control Panels, File Sharing, and press
the Start button under File Sharing off.
Q. But the files I want to
share are on the StarMax.
A: Trust me.
Q: OK, I did that. Now
A: It may take a few
minutes for file sharing to start, especially if you have
lots of files on the Power Mac G3. While it is starting up,
go back to the StarMax and do the following:
1) Go to the Apple Menu, and select Chooser.
2) In the Chooser, select the AppleShare icon.
3) Your G3 ("Lady Godiva") should show up in the
right-hand panel of the Chooser.
4) Double-click on "Lady Godiva."
5) Enter your name and password.
Q: I got a message that
said something about "Unknown user or incorrect password."
A: You need to type,
exactly, the same name and password that you entered in the
File Sharing control panel on the Power Mac G3. The password
is also case-sensitive.
Q: [Pant, pant,
pant] I don't remember what I typed as a password. What
do I do?
A: Go back and type a new
password in the File Sharing control panel on the G3.
Q: [Pant, pant,
pant] This is tough. OK, I did that.
A: Now, on the StarMax, go
back to the Chooser, select AppleShare, double-click on
"Lady Godiva," and enter your name and password.
Q: OK. [Pant, pant]
I did that. A box popped up and had "Macintosh HD" in it.
A: That's the hard drive on
your Power Macintosh G3. Double-click on it.
Q: I did that. Nothing
A: If you look at the
desktop on your StarMax, you should see the Power Mac G3
Q: [Pant, pant, pant,
pant] Oh, wow! Something's wrong:
I now have two hard drives named "Macintosh HD."
A: One of those probably is
for the StarMax, and the other is for your G3.
Q: How can I tell which is
A: The one closest to the
top of the screen probably belongs to the local drive, and
the other is from the G3. I highly recommend that you rename
your hard drives to anything but Macintosh HD. Name
them after your cat. Name them after a favorite color. Name
them the same thing you typed in as the Computer Name in
To rename a hard drive, just click on the name, select
the whole name, then type over the top.
Q: Oops. My StarMax now has
the name of "MacintChocolateosh HD."
A: You need to erase the
old name first, then type in the new name.
Q: OK, I did that.
[Pant, pant] But now it won't let me rename the hard
drive on the G3.
A: You can't rename a hard
disk if File Sharing is turned on. Rename it later.
Q: Fine. [Whine]
But none of this solves my problem: I have files I want to
share on the StarMax, not the G3, so why did I turn File
Sharing on for the G3 and not the StarMax.
A: There are two reasons.
Reason Number One: the Power Macintosh G3 is a heck of a lot
faster than your StarMax, and since File Sharing slows a
machine down, it will slow down the G3 far less than it will
slow down the StarMax.
Reason Number Two: you can now "push" the files you want
shared from the StarMax to the G3. So: find the files you
want moved, and then drag them and drop them on the icon for
the G3's hard drive.
Q: Uh, I don't think this
is working. I did that, but the files are still on the
A: It worked fine: it put
copies on the G3. Go over to the G3 and look.
Q: You are right! How did
it do that?
A: You did that.
Q: You are right. Say, this
was easy. But you didn't tell me how to use a crossover
A: That's right.