dhcpcd-discuss

Hi

On 02/06/2014 16:57, Lode wrote:
> Oops, I sent a link to the wrong router. It is a different one from
> Swisscom. It uses fibre. It is definitely not the analog one. They all
> look the same. Possible it is this one or a variant of it:
>
> http://www.swisscom.ch/en/residential/more/save-energy/router-centro-grande-adb-pirelli.html
> [3]

A quick glance does not show any useful technical details.
Can you obtain a tcmpdump please?

sudo tcpdump -s0 -w/tmp/icmpv6.cap -ieth0 icmp6
# Trigger a request
dhcpcd -n eth0

And email me /tmp/icmpv6.cap please, off list to roy@xxxxxxxxxxxx

> On Mon, Jun 2, 2014 at 5:52 PM, Lode <olifant@xxxxxxxxx> wrote:
> > Other devices (an Ubuntu laptop, and an Android phone) seem to work
> > fine with it: they get both an IPv4 and an IPv6, which is visible in
> > the UI of the router.
> >
> > This is all pretty standard afaik, so I would be inclined to say
> > that the router is ok. Would it be worth investigating if it is a
> > potential bug in dhcpcd? My own knowledge at this level of
> > networking is unfortunately not that high though, so other than
> > providing more details I can't be of much help.
> >
> > The OS of my desktop is Archlinux, which uses systemd, which is the
> > one that goes crazy from receiving so much logging (constant HD
> > activity). Currently I'm getting more worried about the actual ipv6
> > problem than the logging :)
> >
> > Regards,

It could very well be a bug in dhcpcd.
It could also be a bug in your router that Ubuntu and Android choose to 
ignore, or work around.
Hopefully the tcpdump wll shed some light on the matter.

Thanks

Roy