From: Jason Lunz <lunz@falooley.org>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] Re: Randomize on MAC address when bringing up ethernet iface
Date: Wed, 31 May 2006 19:56:06 +0000 (UTC) [thread overview]
Message-ID: <e5kscm$tt3$1@sea.gmane.org> (raw)
In-Reply-To: 20060531190553.GA6111@ccure.user-mode-linux.org
jdike@addtoit.com said:
> So what is the second bit? I only know about the broadcast/multicast bit, and
> no one has bothered clueing me in on any other special bits :-)
the other one's the "locally administered" bit. It's a lot like rfc1918
address space in ipv4, only for ethernet. wikipedia's discussion is
decent:
http://en.wikipedia.org/wiki/MAC_address
http://en.wikipedia.org/wiki/Locally_Administered_Address
those are the only two special mac address bits that i'm aware of.
The effect of setting it is that you ensure that your randomly-generated
mac address will never collide with a globally administered one. Of
course, it might collide with other locally-administered ones.
Jason
-------------------------------------------------------
All the advantages of Linux Managed Hosting--Without the Cost and Risk!
Fully trained technicians. The highest number of Red Hat certifications in
the hosting industry. Fanatical Support. Click to learn more
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
next prev parent reply other threads:[~2006-05-31 19:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-30 18:12 [uml-devel] Randomize on MAC address when bringing up ethernet iface Blaisorblade
2006-05-31 17:09 ` [uml-devel] " Jason Lunz
2006-05-31 17:24 ` Blaisorblade
2006-05-31 19:05 ` [uml-devel] " Jeff Dike
2006-05-31 19:56 ` Jason Lunz [this message]
2006-06-01 8:40 ` Blaisorblade
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='e5kscm$tt3$1@sea.gmane.org' \
--to=lunz@falooley.org \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.