[LEDE-DEV] DDNS for ipv6

[Christian Schoenebeck]

Am 16.01.2018 um 21:07 schrieb e9hack:
> Hi Christian,
> 
> I revert all ddns related changes. It looks like that the changes are not the root cause. I check my old log files. The
> issue did start with my build from 16th of December.
> 
> Independently of this, I'm the opinion, ddns for ipv6 can't work with a deal-in or modem connection. My wan interface is
> pppoe-wan. If the logical interface wan_6 is started, it (or pppoe-wan) doesn't have a global ipv6 address. It does only
> have a link local address. The global address is assigned later. If the ddns script is started before the global address
> is assigned, the script will be stopped and never restart.

Is the an event (reported in syslog) when glocal IPv6 assigned which possibly can be used to (re)activate ddns-scripts?
Is the IPv6 assigned by the provider via dhcpv6 request?

> 
> Regards,
> Hartmut
> 
> Am 15.01.2018 um 21:44 schrieb Christian Schoenebeck:
>> Hi Hartmut,
>>
>> either try newest scripts from github (updated last weekend)
>>
>> or insert "network_flush_cache" at about line 900 inside dynamic_dns_functions.sh function get_local_ip()
>>
>> 	while : ; do
>> 		if [ -n "$ip_network" ]; then
>> 			# set correct program
>> -->>			network_flush_cache	# force re-read data from ubus
>> 			[ $use_ipv6 -eq 0 ] && __RUNPROG="network_get_ipaddr" \
>> 					    || __RUNPROG="network_get_ipaddr6"
>>
>> or set option ip_source	"interface" instead of "network"
>>
>> Christian
>>
>>
>> Am 15.01.2018 um 18:39 schrieb e9hack:
>>> Hi,
>>>
>>> ddns for ipv6 doesn't work since the last few updates related to the ddns package. From log file:
>>>
>>> Mon Jan 15 17:35:21 2018 user.notice DEBUG: hotplug igmpproxy: device 'wan_6' action 'ifup'
>>> Mon Jan 15 17:35:22 2018 user.notice ddns-scripts[7394]: dynv6_ipv6: PID '7394' started at 2018-01-15 17:35
>>> Mon Jan 15 17:35:23 2018 user.err ddns-scripts[7394]: dynv6_ipv6: Can not detect local IP using network_get_ipaddr6
>>> 'wan_6' - Error: '1' - TERMINATE
>>> Mon Jan 15 17:35:23 2018 user.warn ddns-scripts[7394]: dynv6_ipv6: PID '7394' exit WITH ERROR '1' at 2018-01-15 17:35
>>>
>>> This is immediately after a sysupgrade. Restarting of the service brings it back.
>>>
>>> Ddns provider is dynv6.com.
>>>
>>> Regards,
>>> Hartmut
>>>
>>
> 
>