Lung-Pin Chang 65c7212000 dhcp: set outbound interface via cmsg in unicast reply ...

If multiple routes to the same network exist, Linux blindly picks
  the first interface (route) based on destination address, which might not be
  the one we're actually offering leases. Rather than relying on this,
  always set the interface for outgoing unicast DHCP packets.

2015-03-19 23:22:21 +00:00

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