dhcpd doesn't acknowledge dhcp requests

[Sean McMurray]

The DHCP requests come through a DSLAM which injects the option 82 info.

On 06/09/2015 10:40 AM, perl-list wrote:
> 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.
>     >
>
>
>     _______________________________________________
>     dhcp-users mailing list
>     dhcp-users at lists.isc.org
>     https://lists.isc.org/mailman/listinfo/dhcp-users
>
>
>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20150609/b110116c/attachment.html>