From: Derek Fawcus <dfawcus@cisco.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] unique MAC address allocation?
Date: Thu, 31 Mar 2005 00:54:36 +0100 [thread overview]
Message-ID: <20050331005435.G22455@mrwint.cisco.com> (raw)
In-Reply-To: <424AE928.6000501@zappe.us>; from zapman@zappe.us on Wed, Mar 30, 2005 at 11:00:08AM -0700
On Wed, Mar 30, 2005 at 11:00:08AM -0700, Michael Zappe wrote:
>
> As to question 4, nope. The OS has no good way of determining a new MAC
> address to override to (The OS doesn't have an OUI, and then how do you
> pick the serial number after that??),
Pick a random number, set the local allocation bit (second bit on wire)
and then test the address to see if anyone responds to it.
Didn't DECnet do something like that?
DF
> and it's not considered a real
> problem because of the uniqueness of MACs. Not to mention you don't
> even want to think about how a switch could get confused by the whole
> situation... :-)
>
> Mike
next prev parent reply other threads:[~2005-03-30 23:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-30 10:25 fgergo
2005-03-30 10:45 ` McLone
2005-03-30 11:20 ` geoff
2005-03-30 11:27 ` Charles Forsyth
2005-03-30 13:00 ` fgergo
2005-03-30 13:19 ` Artem Letko
2005-03-30 13:20 ` geoff
2005-03-30 23:53 ` Adrian Tritschler
2005-03-30 18:00 ` Michael Zappe
2005-03-30 23:54 ` Derek Fawcus [this message]
2005-03-31 0:20 ` Michael Zappe
2005-03-31 5:34 ` Martin C. Atkins
2005-03-31 14:54 ` Derek Fawcus
2005-03-31 15:00 ` boyd, rounin
2005-03-31 6:50 ` boyd, rounin
2005-03-31 6:53 boyd, rounin
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