From when on is IPv6 address information available on an interface?

[Matt Domsch]

On Mon, Mar 15, 2010 at 02:20:55PM +0100, fedora wrote:
> As you can see from the DNS update command list, the IPv4 address is 
> present, whereas the IPv6 address is empty. The IPv6 address is asked 
> for via the command
> ip -o -f inet6 addr show dev wlan0 scope site
> which returns an empty string.

See MinRtrAdvInterval and MaxRtrAdvInterval in your /etc/radvd.conf on
your router that advertises the IPv6 prefix.  Default is minimum 30
seconds, max 100 seconds, which in means you're slipping in to bring
up the interface and set your DDNS between announcements.

Thanks,
Matt

-- 
Matt Domsch
Technology Strategist, Dell Office of the CTO
linux.dell.com & www.dell.com/linux