ULA prefix lifetime

[Michael Richardson]

chriss <chriss-lists at posteo.mx> wrote:
    > I happens that I have to reconnect my VDSL (update of router, tripped over
    > cable, whatever) - with that I get a new IPv6 prefix delegated. Now my
    > clients have 2 prefixes/addresses. The old one (before the router

:-(
{Your ISP should avoid that kind of thing; IPv6 being plentiful there is no
reason not to just statically allocate them all into the (radius) database,
and just renumber people when there are major re-balancing.}

    > Now my ULA addresses have also a lifetime of 5min - which is bad because
    > after 5 min of router downtime (update) I lose my local delivery between
    > clients.

    > My solution (to this very specific and edge case problem) would be to set a
    > large lifetime for ULA prefixes and use a short one for WAN delegated.

That sounds like a good idea
I'd also say that netifd/dnsmasq ought to automatically deprecate GUAs that
go away when they are not renewed after a network outage.


--
Michael Richardson <mcr+IETF at sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide




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