[OpenWrt-Devel] DHCPv6 flash renumbering patches with HE tunnel breaks

Kevin Darbyshire-Bryant kevin at darbyshire-bryant.me.uk
Fri Mar 27 05:41:30 EDT 2015

On 26/03/2015 23:51, Steven Barth wrote:
> Radvd isn't part of OpenWrt for a while. dnsmasq doesn't support
> downstream delegation and its DHCPv6 features aren't well integrated
> if you have a dynamic prefix e.g. delegated from your ISP.
I've been messing with the 'constructor' option for quite a while which
is supposed to handle dynamic prefix allocation/deprecation, admittedly
with my HE tunnel things aren't very (at all!) dynamic, but dnsmasq does
pick up new publicly routable prefixes and start RA & DHCPv6 on them
automagically for me.  From my /etc/dnsmasq.conf

dhcp-range=lan,::100, ::F:FFFF:FFFF, constructor:br-lan, ra-names, 64, 12h

I'll get back in my box now.

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