Get IPv6 address & DNS from RA

[SjoerdNLD]

Jan 29 19:20:37 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 19:30:30 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 19:40:26 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 19:50:22 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:00:21 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:10:18 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:20:13 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:30:08 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:40:02 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:49:55 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 20:59:48 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 21:09:41 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 21:19:35 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 21:29:26 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 21:39:21 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 21:49:17 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 29 21:59:13 rdnssd[580]: Get IPv6 address & DNS from RA

My logs fill with this, but my ipv6 doesnt work.
The fields are still empty after 3 days.
Does anybody know what this message means?
Only reference I can find is to the icmp code on github.

 

[krum]

What version ?

Chris

 

[saintdev]

This means your ISP is advertising addresses and DNS over router advertisements instead of using DHCPv6. I can't tell you why it would loop like this. My guess would be the message is being printed each time an ICMP packed it received, but because of Asus' changes it never gets processed. So the remote router keeps sending them, because it never gets a reply. This is pure speculation, I only quickly looked over Asus' changes to rdnnsd and not much of the surrounding code.

Asus did some really wacky things with IPv6 in their newer releases. For you I would recommend disabling IPv6 or downgrading to a pre .38 release, because they obviously messed up in your case. Sadly, you're probably going to have to wait for a fix from them for this.

 

[SjoerdNLD]

Just to follow-up I got a ipv6 address after I set:

nvram set ipv6_ra_conf=mset
nvram commit
service restart_dhcp6c

But no connectivity, timeout after first hop. Also ping from the router to ipv6.google.com does not work.
Log now looks like:

Jan 30 00:08:05 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 00:18:01 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 00:27:59 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 00:37:57 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 00:47:52 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 00:49:12 rc_service: dhcp6c-state 23573:notify_rc start_radvd
Jan 30 00:49:12 rc_service: dhcp6c-state 23573:notify_rc start_httpd
Jan 30 00:49:12 rc_service: waitting "start_radvd" via dhcp6c-state ...
Jan 30 00:49:12 radvd[22942]: Exiting, sigterm or sigint received.
Jan 30 00:49:12 radvd[22942]: sending stop adverts
Jan 30 00:49:12 radvd[22942]: removing /var/run/radvd.pid
Jan 30 00:49:12 radvd[23577]: version 1.9.7 started
Jan 30 00:49:13 RT-AC66U: start httpd
Jan 30 00:57:48 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 01:07:46 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 01:17:42 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 01:27:42 rdnssd[580]: Get IPv6 address & DNS from RA
Jan 30 01:37:40 rdnssd[580]: Get IPv6 address & DNS from RA

Repeats about every hour.. I'm going to downgrade for the time being.

 

[saintdev]

Just to follow-up I got a ipv6 address after I set:

nvram set ipv6_ra_conf=mset
nvram commit
service restart_dhcp6c

This isn't the correct setting for your ISP. It doesn't matter, though, it gets reset by rdnssd shortly after it prints that log message.