[dhcwg] (no subject)
"A. Gregory Rabil" <greg.rabil@jagornet.com> Thu, 29 March 2012 14:11 UTC
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Date: Thu, 29 Mar 2012 10:11:11 -0400
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From: "A. Gregory Rabil" <greg.rabil@jagornet.com>
To: dhcwg@ietf.org
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Subject: [dhcwg] (no subject)
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Hello DHC WG, I am looking for clarification around the IAID. Some of this stems from the several discussions recently regarding the DUID and the lack of a MAC address in DHCPv6. Ted (don't mean to call you out here, but it is prevalent to my question) wrote this on the ISC DHCP list: >DUID+IAID uniquely identifies the interface; DUID uniquely identifies the host. My question is can this be guaranteed? From RFC 3315: Identity association (IA) A collection of addresses assigned to a client. Each IA has an associated IAID. A client may have more than one IA assigned to it; for example, one for each of its interfaces. It states "for example, one for each of its interfaces". So, I don't see this as a MUST, or am I missing something? If the IAID is intended to identify the interface, then I wonder why that is not just the MAC address. If that were the case, then every request would contain the DUID identifying the device, and the IAID to identify the actual interface in which the request was made. I guess my concern is that if we start putting the MAC address in the DHCPv6 packet (which I am in favor of), then we should be sure to specify how it does or does not relate to the IAID. Regards, Greg Rabil
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