dhcpcd-discuss

Hi Rod

On 06/06/2016 16:35, Hofer, Rod (Connectivity FW) wrote:
> I looked at the open issues list on your website, and didn’t
> specifically see this item.  I was wondering if the FIXME on line 3532
> of dhcp6.c will be addressed.

Hopefully :)

> RFC 3315 indicates that a node “SHOULD” perform duplicate address
> detection upon receipt of a Reply and respond with a DECLINE message to
> the server if any of the addresses are in use on the link.  I also
> noticed in dhcp6.c that there is a comment “we should decline the
> address”.  It appears that the DECLINE message is sent in the case of a
> DHCPv4 duplicate address.  Will future versions of dhcpcd send a DECLINE
> message for DHCPv6 address duplication?

Hopefully :)

The good news at least is that since that comment was written, dhcpcd
does infact know when the kernel thinks DaD has completed and will note
it. So making it craft a DECLINE message should be fairly straight forward.

> Thanks for any insight you can provide, and apologize in advance for any
> dumb questions on my part.  Let me know if you would like me to open a
> ticket on this item.

Well, an open ticket would provide more visibility on the issue, so it
won't hurt.

I don't have any short term plans to implement it because as of until
now, no-one has really asked for it and I'm pretty sure no other open
source client supports it either. Right now I'm concentrating on
stabalising dhcpcd-6.11 and working on Solaris support.

Roy