ISC dhcpd ignoring DHCP discover

Johannes Bauer dfnsonfsduifb at
Wed Jan 9 17:03:48 UTC 2013

On 09.01.2013 16:27, Johannes Bauer wrote:
> On 09.01.2013 15:28, David Forrest wrote:
>>> That is, it doesn't even log the DISCOVER or display anything, but just
>>> silently drops it. I've verified with tcpdump that the discover actually
>>> makes it the the isc-dhcpd.
>> Does your dhcpd.conf include an "authoritative" statement?
> Yes, it does.
> So does the DISCOVER packet itself seems to be okay? Most peculiar.

Good grief, I'm a huge moron. Due to a copy/paste bug in the UDP stack,
it sent the packet to port 68->68 instead of 68->67. Now everything
works perfectly.

Best regards,

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