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I'm currently trying to configure my DD-WRT-based router to do IPv6. Now I'm at a point where it works fine - until the line is disconnected and reconnects (which happens at least every 24h... for a country renowned for its engineering, Germany is still surprisingly backwater when it comes to internet).

Not giving out static IP addresses, my provider requires me to fetch the configuration using DHCPv6, which I then propagate into to my localnet. But when ppp0 is disconnected and reconnected, dhcp6c does not fetch a new address and subsequently radvd does not advertise the change.

I created a script /jffs/etc/config/ipv6.ipup which restarts all the associated services and it works when I invoke it manually. So even though the documentation says that all *.ipup scripts in that directory should be automatically invoked when the configuration state of the WAN interface changes, it's apparently not happening.

Preferably I'd have dhcp6c and radvd notice the change automatically without completely restarting them, but if you know how any way to solve this configuration, I'd be grateful for any tips.

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  • Possibly related: superuser.com/questions/742792/…
    – Dubu
    Commented May 6, 2014 at 8:48
  • The question not, but the answer gave me an idea nonetheless :) Thanks for the hint, I'll make certain to try it this evening! Commented May 6, 2014 at 12:01
  • I know - ancient - did you ever solve this?
    – ehiller
    Commented Apr 22, 2016 at 15:09
  • Unfortunately I did not. At one point I switched to OpenWRT and there it worked without further configuration. Commented Apr 22, 2016 at 19:43

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