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Re: [mif] New Version Notification for draft-reddy-mif-dhcpv6-precedence-ops-02.txt

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Sat, 20 October 2012 03:03 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Ted Lemon <Ted.Lemon@nominum.com>
Thread-Topic: [mif] New Version Notification for draft-reddy-mif-dhcpv6-precedence-ops-02.txt
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Date: Sat, 20 Oct 2012 03:03:31 +0000
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Subject: Re: [mif] New Version Notification for draft-reddy-mif-dhcpv6-precedence-ops-02.txt
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> -----Original Message-----

> From: Ted Lemon [mailto:Ted.Lemon@nominum.com]

> Sent: Thursday, October 18, 2012 6:11 PM

> To: Tirumaleswar Reddy (tireddy)

> Cc: mif@ietf.org

> Subject: Re: [mif] New Version Notification for draft-reddy-mif-dhcpv6-

> precedence-ops-02.txt

>

> On Oct 18, 2012, at 8:32 AM, Tirumaleswar Reddy (tireddy) <tireddy@cisco.com<mailto:tireddy@cisco.com>>

> wrote:

> > These options can also be used to conditionally disable IPv6 temporary

> addresses in a managed network for selective hosts without authentication

> supplicant.

>

> How would that work?



Hi Ted,



For e.g. In Enterprise premises hosts with EAP kind of supplicants can be tracked even when the IP address changes but for guests, BYOD (Bring your Own Device) without such supplicants IP address based authentication is still required for such users. When Address-based authentication is used, re-

authentication occurs for each new address obtained by the host, which can create a lot of authentication transactions. Switches acting as DHCP relay agent can influence the DHCP server not to assign temporary addresses. It's explained in detail in section 3.2.1 "Avoiding Excessive IP-Based Authentication" of this draft.



> Have you raised this in 6man ?



The above point was discussed in 6man specific to privacy addresses http://www.ietf.org/mail-archive/web/ipv6/current/msg15710.html



--Tiru.

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