[systemd-devel] Systemd-networkd -- Cannot acquire DHCP lease on bridge interface

Lennart Poettering lennart at poettering.net
Thu Oct 23 07:46:59 PDT 2014


On Thu, 23.10.14 07:15, Marcel Holtmann (marcel at holtmann.org) wrote:

> Hi Tom,
> 
> >>>> Trying unicast, waiting some time and then trying broadcast, if a DHCP offer
> >>>> is not sent within that time limit, seems like a fair thing to do. My 2
> >>>> cents.
> >>> 
> >>> Yeah, it seems this is what we should do. I guess it makes sense to
> >>> make RequestBroadcast=yes|no|automatic, and default to the latter.
> >> 
> >> Please name it "auto", not "automatic"...
> >> 
> >> Please make the time short enough though to still give a nice
> >> feeling...
> >> 
> >> I figure the reverse of first trying broadcast, and then trying
> >> unicast is unnecessary, right?
> > 
> > Yeah, I don't think it makes sense to expose this implementation
> > detail. The preference should be for unicast if we don't know any
> > better, as that causes slightly less network traffic, so I think we
> > should do a couple of unicasts only before starting to do both, but
> > that's not anything the user should care about.
> 
> if we have a test case that lets us test this easily, someone might
> want to test the latest ConnMan and see if it does this
> correctly. Since there we are doing the automatic fallback already.

What timeout did you pick?

Lennart

-- 
Lennart Poettering, Red Hat


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