dhcpd doesn't acknowledge dhcp requests

[perl-list]

Question ... I noticed option 82 information in your packet dump. How is that ending up in there? 

The packet dump doesn't appear to show a relay agent in play, so option 82 shouldn't exist... 

> From: "Sean McMurray" <sean at mvtel.com>
> To: "Users of ISC DHCP" <dhcp-users at lists.isc.org>
> Sent: Tuesday, June 9, 2015 1:30:13 PM
> Subject: Re: dhcpd doesn't acknowledge dhcp requests

> I have stripped dhcpd.conf all the way down to this:

> log-facility local6;

> subnet 10.112.0.0 netmask 255.248.0.0 {
> option routers 10.112.0.1;
> pool {
> range 10.112.1.0 10.112.255.255;
> }
> }

> I have disabled SELinux. I have disabled iptables.
> I have purged the leasefile.
> Still, dhcpd does not respond to DHCPDISCOVERs.

> On 06/08/2015 03:21 PM, Peter Rathlev wrote:
> > On Fri, 2015-06-05 at 14:49 -0700, Sean McMurray wrote:
> >> strace shows the daemon receiving requests but not responding.
> >> I'm stumped as to why it won't respond.
> > That certainly seems strange. Have you tried removing the log statements
> > completely? I would call it a bug if that changes anything, but it would
> > be easy to try.

> > With the stock CentOS 7 package it should not be SELinux related, unless
> > there was an error in the definitions. However, could you try disabling
> > SELinux if you haven't already?

> > Other than that I can only think of starting the daemon with a trace
> > file (-tf flag), which should let someone with adequate skills figure
> > out exactly what happens inside the process.


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