Re: Ethernet id

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#3875

From: Mark Adler
Date: Tue, 17 Nov 1992 18:42

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>> BTW, not all NeXT's have an ethernet address that begins 00 00 0f 00.

Did someone say that?  The first three bytes of the address belong
to the manufacturer, so all NeXT's ought to start with 00 00 0f.  The
last three bytes uniquely identify each NeXT, and so those are also
the last three bytes of the hostid.

>> Try grepping through /usr/adm/messages for "Ethernet address".

This might not work.  messages appears to have a size limit, and stuff
drops off of the beginning.  messages.old is the same, so it can drop
off of there too.  Just for fun, I grepped for "Ethernet address" on
every file in /usr/adm on a long-ago booted NeXT, and it wasn't there.

If you don't feel like rebooting, hostid seems the simplest way to me.
Just take the last three bytes it gives, and stick 00:00:0f in front.

Mark Adler
madler@cco.caltech.edu

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References: <BxM930.34I@usenet.ucs.indiana.edu> <HERRING.92Nov13093648@loke.iesd.auc.dk> <1992Nov16.185203.21871@cyantic.com>

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Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!ames!elroy.jpl.nasa.gov!nntp-server.caltech.edu!madler
From: madler@cco.caltech.edu (Mark Adler)
Newsgroups: comp.sys.next.misc
Subject: Re: Ethernet id
Date: 17 Nov 1992 18:42:45 GMT
Organization: California Institute of Technology, Pasadena
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Message-ID: <1ebef5INNosc@gap.caltech.edu>
References: <BxM930.34I@usenet.ucs.indiana.edu> <HERRING.92Nov13093648@loke.iesd.auc.dk> <1992Nov16.185203.21871@cyantic.com>
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