On 2018-07-31 10:01, Hans Dedecker wrote:
On Mon, Jul 30, 2018 at 12:02 AM Torbjorn Jansson
<torbjorn.jans...@mbox200.swipnet.se> wrote:
On 2018-07-29 22:16, Hans Dedecker wrote:
On Fri, Jul 27, 2018 at 2:36 PM Torbjorn Jansson
<torbjorn.jans...@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 auto created 6rd interface is created by the dhcp script
(https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/network/config/netifd/files/lib/netifd/dhcp.script;h=00604f40e70e8ba988bde6af04437d326b5b548a;hb=HEAD#l62)
in case the 6rd DHCP option is received.
So it seems your ISP is providing 6rd info via DHCP
oh, i see.
i'm not sure if isp always provided it or if the auto created 6rd interface in
openwrt from dhcp is a new thing.
i know that when i initially set it up a long time ago i did not get anything
auto created.
i was under the impression my isp considered 6rd to be experimental.
the errors stopped once i changed "bring up on boot" on wan6 and ipv6 still
works (after reboot) but i don't understand why.
This confirms my statement above about 6rd info being provided by DHCP
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.
Pretty sure nothing has changed recently related to the 6rd logic; I
guess it's a race condition between the wan_6 and wan6 interface which
was before not visible
if i delete wan6 then I delete all 6rd settings like remote ipv4 address, the
ipv6 prefix and so on.
If the automatic created 6rd interface gives you IPv6 connectivity
there's no reason to keep the manual created wan6 interface
Hans
i will try to delete it and see what happens.
but first id like to take a look at the dhcp reply i get from my isp.
maybe i can run a tcpdump or something to catch it as it renews.
thanks for explaining.
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