All the IP address from the DHCP leases

[Ryan Gray]

Excellent.  I've still got installs of dhcp-status.cgi around (yuck), and a
few uses of dhcpd-pools.  I was super excited about Kea when I heard about
it.  On paper, it is everything I've ever wanted - DHCP with a relational
database back-end!!  So promising.  Unfortunately, the handful of times
that I've approached using it, it has been a disaster.  I tend to do a lot
of vendor and option 82 matching, creating classes and pools.  The last
time I looked at Kea, those features just weren't there.  I've written a
bigger application that actually does store all config information in a
MySQL db, but then I'm re-writing the dhcpd.conf file and associated
includes upon each change. That also necessitates restarting the daemon
with the application. It is kludgy at best, but it works. ISC DHCP is
amazing, don't get me wrong. It is so solid. I just wish it had some better
tooling.

~Cheers



On Tue, Mar 1, 2016 at 8:27 AM, shankha <shankhabanerjee at gmail.com> wrote:

> Hi Ryan,
> Thanks.
>
> I ended up writing something you suggested in C++.
>
> I am trying to look at http://dhcpstatus.sourceforge.net/
> and long term look at  http://kea.isc.org/wiki
>
> Thanks
>
>
> On Tue, Mar 1, 2016 at 9:06 AM, Ryan Gray <ryantgray at gmail.com> wrote:
> > Hi Shankha,
> >
> > I recently took a swing at doing the same using the dhcpdtl APIs. I found
> > the API to be extremely cumbersome (maybe just me). I ended up back at
> > parsing the dhcpd.leases file (ugh). I ended up writing a PHP class that
> > takes in the leases file and parses it, outputting a associative array
> with
> > everything I needed from it.  It depends on Carbon for dealing with
> > timestamps. It's fairly basic, but you're welcome to take a look at it.
> > http://pastebin.com/GD2i4i6s
> >
> > You can disregard the GuzzleHttp usage in there. A previous iteration of
> > this "solution" (I used that lightly) was to use the old dhcpd-pools
> script
> > on the dhcp server and offer up it's output (json) to my web
> application. So
> > guzzle was just running over to get that output from the dhcp server.  It
> > isn't necessarily needed in this class.
> >
> > Good luck.
> >
> > -goat
> >
> > On Fri, Feb 26, 2016 at 9:28 AM, shankha <shankhabanerjee at gmail.com>
> wrote:
> >>
> >> Hi,
> >> I was trying to program DHCP leases and going through the dhcpctl API's
> >>
> >> Is there a way I can get a list of all the leases (or the IP address)
> >> from the dhcp server.
> >> I do not know the IP address before hand.
> >>
> >> Thanks
> >> _______________________________________________
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> >> dhcp-users at lists.isc.org
> >> https://lists.isc.org/mailman/listinfo/dhcp-users
> >
> >
> >
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