[PLUG] PLUG Digest, Vol 145, Issue 13

[Chuck Hast]

Oh yes, I did a update and upgrade to the RPi, before I did that it was
running
like a champ. Indeed I had upgraded WeeWx on it a while back and did a gen-
eral update/upgrade to every thing back then. So something came down the
pipe that broke this thing and I am not sure what as it has been running
great
ever since I started using it to pull the weather data off of my Costco
weather
box.

I do see a lot of IPv6 stuff happpening, so I am suspecting something to do
with
that but not sure.

On Wed, Oct 19, 2016 at 2:59 PM, Chuck Hast <wchast at gmail.com> wrote:

> Weird, I did all of that and I am getting the same thing. If I start the
> RPi it will
> pull IP's for both eth0 and wlan0, as soon as I unplug eth0 both of them go
> away.
>
> The dhcpcd file has clientid available and duid as #duid so it is not
> visible. But
> looking at the syslog trace it looks like it may be doing so anyhow.
>
> I can drop a trace on here but it will be a wee bit long.
>
>
> On Wed, Oct 19, 2016 at 1:34 PM, Mike C. <mconnors1 at gmail.com> wrote:
>
>> >
>> > Folks,
>> > I just did a update to a RPi B+. Before I did the update all was working
>> > just fine, after doing so I lost my network connection (wifi) I can see
>> the
>> > interfaces but no IP. I plug in a ethernet cable, but do not see the
>> dhcp
>> > client pulling an address, I reboot the RPi, and then I get addresses on
>> > both the wired and wireless side. I figure that all was OK so I pull the
>> > wired side, within seconds both ports have lost their IP addresses. I
>> can
>> > see in the syslog where it happens, for some reason looks like the dhcp
>> > client is removing BOTH addresses, even worse in order to get a link
>> back
>> > I have to reboot the thing.
>> >
>> >
>> I found this thread,
>> https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=110692. from this
>> past May. It seems there was a change to DHCP that might be the culprit.
>>
>> Here's the relevant thread:
>>
>> "by *drice
>> <https://www.raspberrypi.org/forums/memberlist.php?mode=view
>> profile&u=128510>*
>> »
>> Mon May 18, 2015 7:39 pm
>>
>> Edit /etc/dhcpcd.conf
>>
>> Comment out duid and uncomment clientid.
>>
>> Save the file and restart the service or the whole Pi.
>>
>> It looks like they recently changed this so that instead of sending the
>> MAC
>> address to the DHCP server it is sending the DHCPv6 DUID which is not the
>> same and some routers can't handle at all. I suppose this is technically
>> RFC4361 compliant but it breaks existing DHCP reservations."
>>
>> Curious to know if that's the problem. HTH.
>>
>> Cheers!
>> _______________________________________________
>> PLUG mailing list
>> PLUG at lists.pdxlinux.org
>> http://lists.pdxlinux.org/mailman/listinfo/plug
>>
>
>
>
> --
>
> Chuck Hast  -- KP4DJT --
> Glass, five thousand years of history and getting better.
> The only container material that the USDA gives blanket approval on.
>
>
>


-- 

Chuck Hast  -- KP4DJT --
Glass, five thousand years of history and getting better.
The only container material that the USDA gives blanket approval on.