<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Andale Mono; font-size: 10pt; color: #000000'>I for one would love to see your config to see how you are doing this. The hardware ethernet isn't included in the DHCPv6 packet (at least as far as I can see from packet captures) other than as part of the client-id (DUID) on *SOME* clients (ie: NOT d-link). Would love to see your configs... Didn't know the DHCP server decoded the DUID to know what the hardware ethernet is.<br><br><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid rgb(16, 16, 255);margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Walter Andrew Scott" <walter.scott@utah.edu><br><b>To: </b>"Users of ISC DHCP" <dhcp-users@lists.isc.org><br><b>Cc: </b>"Tom Ammon" <tom.ammon@utah.edu><br><b>Sent: </b>Tuesday, January 24, 2012 9:49:05 AM<br><b>Subject: </b>RE: DHCPv6 and MAC Address inclusion<br><br>
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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">I realize I'm coming in late to this discussion, but I thought I'd throw in my personal experience with a question.. We're running the ISC dhcpv6 server v4.1.1-P1 that comes pre-packaged
with Redhat 6. We use the phrase "hardware ethernet" to denote MAC addresses in our reservation tables and the clients get recognized. Is this behavior not part of the RFC and/or removed in newer versions of the server?<br>
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I realize that using the MAC address limits us to one assignment per interface, but we don't have any cases where we dynamically assign more than one address per physical NIC so we don't lose anything. I'm just wondering if our current approach is a kluge and
we should be trying to figure out a clean way to get the server to tell us which link-local addresses and/or MAC addresses match to which DUIDs that are being used by clients (we haven't been able to find one yet) or if we can expect to keep going with MACs
as the client-ids.<br>
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<div class="PlainText">Walter A. Scott<br>
Web Application Developer<br>
Center for High Performance Computing<br>
University of Utah<br>
walter.scott@utah.edu</div>
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<div style="direction: ltr;" id="divRpF554521"><font color="#000000" face="Tahoma" size="2"><b>From:</b> dhcp-users-bounces+walter.scott=utah.edu@lists.isc.org [dhcp-users-bounces+walter.scott=utah.edu@lists.isc.org] on behalf of perl-list [perl-list@network1.net]<br>
<b>Sent:</b> Tuesday, January 24, 2012 07:27<br>
<b>To:</b> Users of ISC DHCP<br>
<b>Subject:</b> Re: DHCPv6 and MAC Address inclusion<br>
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<div style="font-family: Andale Mono; font-size: 10pt; color: rgb(0, 0, 0);"><font face="'Andale Mono'" size="2">A convincing case for the need of the MAC address in the DHCP packet:</font>
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