RESOLVED: dhcpd sporadically ignoring one of two "copies" of a DHCP request

[Niall O'Reilly]

At Tue, 11 Mar 2014 19:15:05 +0000,
Phil Mayers wrote:
> 
> Digging into the source code I found the cause; apparently we had
> "ping-check" on (!) and, if you do that, the lease is allocated but
> not ACKed until the ping has timed out.
> 
> While that's happening, lease->state is set, and ack_lease() has a
> short-circuit return (with no logging; sigh) that drops the 2nd reply.
> 
> If I read the code path right the same thing would happen with delayed ack.

  Nice work, Phil!

  I'm left wondering whether you see this as a bug, or rather just
  a nuisance either to be tolerated or to be worked around by disabling
  "ping-check"?

  ATB
  Niall O'Reilly