In article <20110203220604.A8BAE9A5102@drugs.dv.isc.org>, Mark Andrews <marka@isc.org> writes
In any event, two of my applications are not IPv6 compatible, and would require significant upgrading. And will my ADSL provider and my 3G provider both switch to IPv6 at about the same time?
You shouldn't have to care. Properly written clients will connect over whatever is available without significant delay and since you are multi-homed
I'd call it more alternate-homed.
you really do want your clients to be properly written. If they are not complain to your vendor as they are not meeting the RFC 1123 requirements.
One client is no longer maintained (but I am very attached to it). The other is nailed inside a five-year-old VoIP box and I suspect they'll say "buy a new one". These are just my straw poll of what may be difficult for small enterprises in a change to IPv6. -- Roland Perry