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Re: [dhcwg] DHCP and DHCPv6 options for LWM2M services

Ted Lemon <mellon@fugue.com> Mon, 09 January 2017 14:21 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Mon, 09 Jan 2017 09:21:02 -0500
In-Reply-To: <HE1PR0701MB191453938CCDD842F97014F3DE640@HE1PR0701MB1914.eurprd07.prod.outlook.com>
To: Srinivasa Rao Nalluri <srinivasa.rao.nalluri@ericsson.com>
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Cc: Amit Gupta X <amit.x.gupta@ericsson.com>, "dhcwg@ietf.org" <dhcwg@ietf.org>, Ari Keränen <ari.keranen@ericsson.com>, Jaime Jiménez <jaime.jimenez@ericsson.com>, Jan Melen <jan.melen@ericsson.com>
Subject: Re: [dhcwg] DHCP and DHCPv6 options for LWM2M services
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How would this be validated?

> On Jan 9, 2017, at 2:00 AM, Srinivasa Rao Nalluri <srinivasa.rao.nalluri@ericsson.com> wrote:
> 
> Hi,
>  
> Considering growing popularity of Internet of Things and relevant protocols like LWM2M/CoAP/MQTT, we in Ericsson see need for new DHCP options to make LWM2M service deployment easy and flexible.
>  
> Light weight machine to machine (LWM2M) protocol is used to manage end device life cycle in machine to machine communication scenarios.
> LWM2M device bootstrap is an optional life cycle phase for devices to  get needed information when starting up for first time.  Information
> gathered during bootstrapping might include management server details  and security certificates required to establish connectivity with
> management server.  Information required to connect with bootstrap  server might be hard coded during device manufacturing phase.
>  
> Hard coding configuration by device manufacturer forces device  operator to use same configuration as hard coded.  It is possible
> that reachability information of bootstrap server that is hard coded may be outdated and boot strap server reachability might fail during
> first use of device.  In such cases connectivity with bootstrap server is possible only through device software upgrade.
>  
> So, we see need to introduce two options to support LWM2M server URL and LWM2M server certificate that validates public key provided by LWM2M server. Thus bootstrap related information can be gathered by LWM2M client during DHCP/DHCPv6 negotiation phase. Draft available at below link describes details. 
>  
> https://www.ietf.org/internet-drafts/draft-nalluri-dhc-dhcpv6-lwm2m-bootstrap-options-01.txt <https://www.ietf.org/internet-drafts/draft-nalluri-dhc-dhcpv6-lwm2m-bootstrap-options-01.txt>
>  
> This draft considers options for both DHCP and DHCPv6.
>  
> I would like this draft to be considered by DHC working group as work item. Please contact me for any further details.
>  
>  
> With Regards
> Srinivasa Rao Nalluri
> Ericssion 
> India
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