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Re: IPv6 across suspend / resume -- who is responsible for flushing?



Hello,

On Tue, 17 May 2011 07:11:00 -0400
Michael Richardson <mcr@sandelman.ca> wrote:

> 
> I suspended my laptop from my home (wifi) network which has native
> IPv6. I resume it on the VIA train which does not have any IPv6.
> 
> I still have the prefix from home, so my laptop thinks it should still
> use it.  I could turn the lifetime in the RA down a bunch, but that
> seems wrong.

> Whose fault is this?  Should the kernel aggressively do RS' when it
> resumes?  Should some userspace thing run rdisc6 upon resume?    
> Should the kernel flush IPv6 routes when the essid is changed?
> Should NetworkManager be doing this?

I think you should use ifplugd or a similar tool to put the interfaces
down when you turn them off physically. Or, you may want to modify your
suspend/resume scripts.

-- 
WBR, Andrew

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