Re: FYI: DNSOPS presentation

[Philip Homburg <pch-v6ops@u-1.phicoh.com>]

In your letter dated Tue, 20 Apr 2010 12:13:37 +0200 (CEST) you wrote:
>> Then you can be reasonably sure that any customers with broken IPv6
>> connectivity will complain to the ISP as well.
>
>The failure mode experienced by the users is typically ... not
>obvious, so whether there pops out a report to the provider from the
>customer about broken IPv6 connectivity as a result of the failure
>is far from given.  I suspect that the site administrators would not
>expect IPv6 to be the problem source, since that's typically not
>something they've enabled on their local network (yet).

If customers are not using any application level service offered by the
ISP (i.e. read mail through gmail/hotmail/yahoo, etc, don't visit the ISP's
website, etc.) then it may go undetected. That's true.

Otherise, admins learn quickly enough. It may be tricky to find at first.
but soon everybody starts talking about that new IPv6 thing and how much 
trouble it causes.

ISP helpdesks will also be quick to ask customers to disable IPv6 to resolve
any problems.