[OpenWrt-Devel] 6rd issues with 18.06-rc2 on ubnt-erx-sfp

[Torbjorn Jansson]

On 2018-07-29 22:16, Hans Dedecker wrote:
> On Fri, Jul 27, 2018 at 2:36 PM Torbjorn Jansson
> <torbjorn.jansson at mbox200.swipnet.se> wrote:
>>
>> Hello
>>
>> i decided to try to upgrade my erx-sfp from an old snapshot (probably a year or
>> so old) to 18.06-rc2.
>> for the most part it worked out but there is something odd going on with my 6rd
>> wan interface and i'm not sure where to start the troubleshooting.
>>
>> with luci-proto-ipv6 and 6rd packages installed i get a lot of stuff like this
>> in syslog:
>> 14:29:07 2018 daemon.notice netifd: wan6 (24771): Command failed: Unknown error
>> 14:29:07 2018 daemon.notice netifd: Interface 'wan6' is now down
>> 14:29:07 2018 daemon.notice netifd: Interface 'wan6' is setting up now
>> 14:29:08 2018 daemon.notice netifd: wan6 (24856): Command failed: Unknown error
>> 14:29:08 2018 daemon.notice netifd: Interface 'wan6' is now down
>> 14:29:08 2018 daemon.notice netifd: Interface 'wan6' is setting up
>> (dates removed to make log easier to fit in mail without line breaks)
>>
>> this repeats every second and 6rd interface seems to get ip adress but it is
>> not quite working.
>>
>> plus i noticed under Network -> Interfaces in webinterface i now have two
>> similar looking 6rd interfaces.
>> one named WAN6 and thats the one i created and another one that cant be edited
>> that's called WAN_6
>>
>> WAN6 is listed as protocol: IPv6-over-IPv4 (6rd)
>> WAN_6 is listed as protocol: Virtual dynamic interface (IPv6-over-IPv4 (6rd))
>>
>> the last interface must be something new or a problem or something.
>> it is also that interface that gets the ipv6 addresses.
>>
>>
>> any idea whats wrong?
>> or how to find out what command failed in the log?
> Hi,
> 
> You cannot enable both an automatic 6rd interface (wan_6) and a manual
> created 6rd interface (wan6); Either remove the manual created 6rd
> interface or set iface6rd to 0 in the wan network config which will
> disable the automatic creation of the 6rd wan_6 interface
> 
> Hans

i'm not sure i get it.
where is the auto created 6rd interface that can't be edited coming from if not 
from the one i created myself?

the errors stopped once i changed "bring up on boot" on wan6 and ipv6 still 
works (after reboot) but i don't understand why.

the config i'm running with is exactly the same as i had on old version of 
openwrt/lede and it worked just fine.
i guess something is different now.

if i delete wan6 then i delete all 6rd settings like remote ipv4 address, the 
ipv6 prefix and so on.

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