Fix some ifup related network issues

[Sascha Hauer]

On Wed, Apr 23, 2014 at 11:19:23AM +0200, Juergen Borleis wrote:
> Patch 3 of 3 is more an RFC. Because we have a generic issue inside the hush.
> Anybody here who is able to fix the hush?

Nobody is able to fix hush, some people may be able to rewrite it ;)

Applied this series.

Sascha

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