tasklwIP - A Lightweight TCP/IP stack - Tasks: task #12406, Add stateful DHCPv6

 
 

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task #12406: Add stateful DHCPv6

Submitted by:  Simon Goldschmidt <goldsimon>
Submitted on:  Fri 11 Jan 2013 09:22:20 PM UTC  
 
Category:  IPv6 Should Start On:  Fri 11 Jan 2013 12:00:00 AM UTC
Should be Finished on:  Fri 11 Jan 2013 12:00:00 AM UTC Priority:  5 - Normal
Status:  None Privacy:  Public
Percent Complete:  30% Assigned to:  None
Open/Closed:  Open Planned Release:  None
Effort:  0.00

( Jump to the original submission)

Mon 04 Mar 2019 06:40:24 PM UTC, comment #9: 

> Could you please let me know that what's the reason that we do
> not support this (too much time or not needed for IPv6 from
> real use case)?


I'm not against including stateful DHCPv6, but it's doesn't seem to be used as widely as the IPv4 version. The combination of SLAAC and stateless DHCPv6 is normally enough, unless your network operator requires you to use DHCPv6.

In that case, patches are welcome.

> Or we may do this in the future?


Yes, you may do this. I probably won't.

Simon Goldschmidt <goldsimon>
Project Administrator
Fri 01 Mar 2019 03:12:47 AM UTC, comment #8: 

Thank you so much for your reply!
Could you please let me know that what's the reason that we do not support this (too much time or not needed for IPv6 from real use case)?  Or we may do this in the future?

Best Regards,
Rain

Rain Wang <zengyuwang>
Wed 27 Feb 2019 11:31:38 AM UTC, comment #7: 

No, there's no plan. By now, this task is only a reminder. We do have stateless DHCPv6 to get DNS servers, but that's all.

Simon Goldschmidt <goldsimon>
Project Administrator
Wed 27 Feb 2019 07:06:01 AM UTC, comment #6: 

Hello,
I could help and give a contribution to the DHCPv6 stateful task if needed, is there any plan/estimation for this task? Thanks.

Rain Wang <zengyuwang>
Fri 23 Feb 2018 06:39:09 AM UTC, comment #5: 

Stateless DHCPv6 has been added in commit 76a13054ee9d2314673f779ea3ddb37f51775b14.

Stateful DHCPv6 remains to be done.

-> changed summary and planned release

Simon Goldschmidt <goldsimon>
Project Administrator
Wed 22 Nov 2017 12:45:51 PM UTC, comment #4: 

Stateless DHCPv6 should be added for 2.1.0

Simon Goldschmidt <goldsimon>
Project Administrator
Mon 18 Mar 2013 11:35:26 AM UTC, comment #3: 

Stateless DHCPv6 (i.e. Information Request - RFC 3736) is often needed to retrieve DNS (and SIP) server address(es). This is especially valid in an IPv6-only network.

Stateless DHCPv6 runs fine as an addon to SLAAC: The network informs the clients the support for it through the M/O-bits in the RA message during SLAAC.

To make use of IPv6 DNS server address(es), I think the LwIP DNS client need to be enhanced with support for transmitting on IPv6?

Harald Johansen <hajohans>
Mon 14 Jan 2013 03:56:17 PM UTC, comment #2: 

So far I haven't ran into a case where I need DHCPv6.

Stateless address auto-configuration as currently implemented has been enough for me.

I understand that DHCPv6 is useful for additional configuration options (DNS servers? local NS?), but nothing critical.

I think it is OK to release 1.5.0 without it.

Ivan Delamer <idelamer>
Project Member
Sat 12 Jan 2013 07:09:24 PM UTC, comment #1: 

I think it's a nice-to-have. Both at home and at work, SLAAC always triggers first and I never hit the fallback-to-DHCPv6 case.

However, looking at network managers such as connman, it'd be feature-parity to include it.

Grant Erickson <marathon96>
Fri 11 Jan 2013 09:22:20 PM UTC, original submission:  

I don't know exactly how optional this is, but I'd like it to be included with the first IPv6-supporting release...

Simon Goldschmidt <goldsimon>
Project Administrator

 

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    Follow 8 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-02-23 goldsimon Percent Complete0% => 30%
        Assigned togoldsimon => None
        Planned Release2.1.0 => None
        SummaryAdd DHCPv6 => Add stateful DHCPv6
    2017-11-22 goldsimon Assigned toNone => goldsimon
        Planned ReleaseNone => 2.1.0
    2015-08-19 goldsimon Planned Release1.5.0 => None
    2013-01-15 goldsimon CategoryDHCP => IPv6

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