IPV6 DUID

[john9527]

anyone have any idea's

Yes sir....took a couple of days and multiple builds to finally figure it out on my fork. Check out....
https://github.com/john9527/asuswrt-merlin/commit/89c27997ec9d817e4ce496488eaf5afc0db48f5f

I added this as a 'Special ISP Option'.....

EDIT: The stack in the latest Merlin is different, so you're going to have to figure out how to do something equivalent.

 

[Shonk]

I take it the router's coming up and just presuming it can use the range still
and not informing the isp end as such?

 

[john9527]

No, it was more that that. There was no advertisement at all from Sky until the router sent a request first.

 

[Shonk]

im in over my head im a hack at best..

i tried
odhcp6c -df -R -s /tmp/dhcp6c -N force -k -c 00030001000000000000 -FP 0:56108 -r23 -r24 -r82 -r83 eth0
instead of
odhcp6c -df -R -s /tmp/dhcp6c -N try -k -c 00030001000000000000 -FP 0:56108 -r23 -r24 -r82 -r83 eth0
which didnt work
and actually ends up with nothing at all on the ipv6 side

 

[john9527]

'-N force' would have been my first guess as well.

odhcp6c is actually started multiple times in the boot sequence. You may need to do something similar to what I had to do, make the 'force' a one shot, only the first time it's called, then go back to 'try'.

 

[Chrysalis]

There is also a 2nd issue where for no apparent reason occasionally sky's dhcp will take between 20 and 40 min to send the prefix. Seems to happen about 10% of the time. Not a asuswrt issue that one as people on other devices have reported it also.

 

[RMerlin]

Added option to prevent sending a RELEASE request at odhcp6c shutdown.

 

[Shonk]

Added option to prevent sending a RELEASE request at odhcp6c shutdown.

thanks merlin
did you force it to poke the isp like john

Update-19E1 Highlights (full changelog is in the zip files)

• Update OpenVPN to 2.3.12
• Support prefix lengths other than 64 for native IPv6
• New IPv6 options required by some ISPs
  • Prefix delegation requires address request
    Some ISPs require an active address request to provide an IPv6 prefix. Sky UK and at least one Singapore ISP are known to require this setting. The default for this setting is not to do this special handling.
  • Release addresses on exit
    Some ISPs are providing 'sticky' IPv6 addresses vs static addresses. The default behavior is to release all IPv6 addresses on exit/reboot, at which time new addresses may be assigned. This option prevents the release and keeps the same addresses following the restart.
  The default settings maintain the behavior of previous levels, so if IPv6 is working correctly on earlier levels, there is no need to make any changes.

http://www.snbforums.com/threads/ipv6-duid.34523/page-2#post-279969

edit nope its not pokeing the isp on boot

on boot

kill and restart with exact command

 

[Shonk]

as a temp workaround until someone more skilled than me does a clean fix

release prefix on exit = Disable in ipv6

/jffs/services/services-start

#!/bin/sh

ifconfig eth0:1 192.168.100.2 (to access my modem)
sleep 5
killall odhcp6c
odhcp6c -df -R -s /tmp/dhcp6c -N try -c 00030001000000000000 -FP 0:56108 -r23 -r24 -r82 -r83 -k eth0

(works without sleep 5 but just playing it safe)
(if you are getting problems try sleep 0 sleep 10 sleep 15 etc until one works for you)

 

[thegeneralguy]

Any news on fixing this in mainline Asuswrt-Merlin? Have a RT-AC5300 so I can't use John's fork