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You miss the point. Of course you care which door-knob you're
monitoring. <br>
<br>
You know which one you're monitoring because the locksmith told you the
MAC address/EUI64 address or Serial number off the cardboard box, or
maybe<br>
your campus wireless controllers triangulated the door-knob and told
you its GPS coordinates.<br>
<br>
Before he told you, the door-knob registered itself securely (because
the manufacturer installed a certificate in it) to a Door-knob
Controlller/Management System.<br>
Then you logon to the management system, see the knew door-knob in the
alerts list or unknown zones, matched it with the serial number (EUI64)
where<br>
you were then able to type in the meaningful name of the location,
security zones etc.<br>
<br>
That's the direction embedded systems are going. I've seen people
complain about their EUI-64 IP address changing because their MAC
address changes. Well how about<br>
the embedded certificates in that device? Those change too! Were you
really going to secure your building based on some static IP addresses?
You were really going to repair the "NIC" on your IP door-knob when it
failed rather than replace it? <br>
<br>
DHCP can still hand out tftp addresses without handing out IP
addresses, and DHCP isn't the only way to hand out server addresses -
there are already well known addresses for IPv6 DNS, an embedded device
might also be listening to a multicast/anycast address, or use
proprietary methods.<br>
<br>
<br>
<br>
Kevin Loch wrote:
<blockquote cite="mid:46646B3B.7070400@kl.net" type="cite">
<pre wrap="">John Paul Morrison wrote:
</pre>
<blockquote type="cite">
<pre wrap="">You want DHCP for your IPv6 door knobs?
</pre>
</blockquote>
<pre wrap=""><!---->
Do you care which doorknob you are monitoring/controlling? At
some point you have to make the association between doorknob
location/function and IP address. While doing that you may
also find it convenient to choose a simple integer with
lots of leading zeros.
I may also need to tell the doorknob what tftp server to download
it's configuration from (see: voip phones).
So, yes I would want DHCP for my door knobs.
- Kevin
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</pre>
</blockquote>
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