Fwd: Rapid DHCP

[Bill McGonigle]

On 08/03/2011 01:19 PM, Dan Williams wrote:
> The Ubuntu NM maintainer has posted a WIP patch that makes NM say it's
> connected immediately if at least one of IPv4 or IPv6 completes.
> Currently if both are enabled, NM won't say it's connected until both
> are done (and result in either success or failure).  That at least
> speeds up the perceived connection speed, which isn't a bad thing.

Nice, that will help almost everybody, but possibly it could break
somebody who's depending explicitly on IPv6 (or IPv4 in the other case)
for an app and now thinks the network is up.

How do apps, e.g. Thunderbird, know when they're online?  dbus, /sys?

If this change happens, there ought to be a way for that small slice of
apps to check to see that the stack they demand is really up, if they're
depending on it (more directly than parsing text output of userland
tools).  Probably this already exists, right?

-Bill

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