[PATCH] Implemented support for stateless DHCPv6. Udhcpc6 will send Information-Request to request configuration parameters without IP address if using 'l' option.

Markus Gothe nietzsche at lysator.liu.se
Tue Aug 27 18:36:39 UTC 2019


Any updates? I can find this useful for PPPoE in embedded systems where you might not use RA (goes for PPP as well), since it's best current practice according to the broadband forum.

//M

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	  Original Message  



From: vda.linux at googlemail.com
Sent: 24 August 2019 17:17
To: Nicolas.Cavallari at green-communications.fr
Cc: busybox at busybox.net
Subject: Re: [PATCH] Implemented support for stateless DHCPv6. Udhcpc6 will send Information-Request to request configuration parameters without IP address if using 'l' option.


On Fri, Aug 23, 2019 at 10:16 AM Nicolas Cavallari
<Nicolas.Cavallari at green-communications.fr> wrote:
> On 22/08/2019 15:53, Denys Vlasenko wrote:
> > So, this looks similar to send_d6_discover() when no -d options was given,
> > and "-r no" was given to suppress IP address request.
> > The only difference in the packet will be D6_MSG_SOLICIT message type
> > instead of D6_MSG_INFORMATION_REQUEST, right?
> >
> > What happens on your network if you just use "no -d, -r no"
> > with non-patched udhcpc6?
>
> A server configured to only do stateless DHCPv6 will simply refuse your request.

I'm interested what actually happens in real life with servers
on your network.
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