dhclient: renewal failure due to invalid route selection

[Guillaume Nault]

On Tue, Dec 30, 2014 at 10:20:21AM -0800, Ben Greear wrote:
> On 12/30/2014 10:09 AM, Guillaume Nault wrote:
> > Hi,
> > 
> > Here's a problem that has already been reported a few times on
> > dhcp-users[0]. The problem is that dhclient sends its unicast packets
> > using the fallback interface. Since the socket used by the fallback
> > interface isn't bound to any network device, unicast packets are sent
> > following the local routing tables. The output interface can then be
> > different from the device to be configured, which prevents dhclient to
> > complete its renewal phase (thus requiring a new discovery after the
> > first lease expires).
> 
> I've done some similar work in this area in case someone is
> interested in looking at some other patches....
> 
> https://github.com/greearb/dhcp-ct/commits/master
> 
Didn't know about your tree. Thanks for sharing :)

Guillaume