Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!cs.utexas.edu!rice!sun-spots-request
From: woodb!tkevans@cs.umd.edu
Newsgroups: comp.sys.sun
Subject: Changing Client IP Address
Keywords: Networks
Message-ID: <8715@brazos.Rice.edu>
Date: 11 Jun 90 14:06:58 GMT
Sender: root@rice.edu
Organization: Sun-Spots
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Approved: Sun-Spots@rice.edu
X-Sun-Spots-Digest: Volume 9, Issue 205, message 6

When our vendor installed our Sun equipment (3/50's and 3/60's, but this
is not--I don't think--important to this question), he used the example IP
addresses in the Sun manuals to set up the machines.  At that time, we had
no plans to connect to the outside world, so these arbitrary addresses
worked ok within our network.

Now, however, we have a shiny new domain name and Class B IP address.  As
a result, I need to change all the IP addresses we have been using.  When
I made changes in the /etc/hosts file on the server machines, everything
went ok, but the clients could not find the server to boot up.  They were
able to get their (new) IP address from the server, but couldn't boot.

There doesn't seem to be anything in TFM about how to _change_ an existing
client's IP address.  Lots of stuff about installing and deleting clients,
but nothing about changing an existing one.  I hate to have to back the
client up, then delete it, then reinstall it, just to change its IP
address.

From TFM, it appears the client looks for a file /tftpboot named with the
hex equivalent of its IP address, a file which is symbolically linked to
/tftpboot/boot.sun3.  Could I just rename this file to the hex equivalent
of its new IP address?  Will the client boot?  If so, are there any other
fixes needed to properly implement this workaround?  Thanks.

cc:Mail		Tim K. Evans at ~OSS
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