From owner-freebsd-questions  Tue Jan 13 16:56:46 1998
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Date: Tue, 13 Jan 1998 15:14:44 -0800
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Subject: Re: ISC DHCP server - Address already in use
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This bounced first time 'round.

> Subject: Re: ISC DHCP server - Address already in use
> Date: Tue, 13 Jan 1998 11:56:07 -0800
> From: Studded <Studded@dal.net>
> To: keith@lsuc.on.ca
> CC: freebsd-questions@FreeBSD.ORG
 
> Keith Jackson wrote:
> >
> > I am trying to get the ISC DHCP server running on a FreeBSD 2.1.0
> > system.
> 
>         I have no idea whether it will work on fbsd 2.1.0 or not. :-/ I would
> heartily recommend upgrading to FreeBSD 2.2.5-Stable before working on a
> project like this. Check out http://home.san.rr.com/freebsd/upgrade.html
> for more info on the upgrade.
> 
> > The DHCP server is the Beta 5.16.  I have compiled the server
> > with no errors.
> 
>         Next suggestion, use the port. The person who maintains the port is
> very rigorous about keeping it up to date (thanks Justin :).  It
> contains all the patches that you need, and none you don't. There's info
> on www.freebsd.org on how to download and use the ports collection.
> 
> > I have now added the Berkeley Packet Filter to the
> > kernel and recompiled it. I have created 4 bpf devices. I have also
> > added the #define BROKEN_FREEBSD_BPF to the site.h file of the DHCP
> > server source before compiling it just in case the version of FreeBSD
> > has this bug.  I start up the DHCP server and it says the folowing:
> >
> > Internet Software Consortium DHCPD $Name: BETA_5_16 $
> > Copyright 1995, 1996 The Internet Software Consortium.
> > All rights reserved.
> > # Listening on BPF/ed0/0:0:c0:fb:25:c1/142.57.16.0
> > Sending on   BPF/ed0/0:0:c0:fb:25:c1/142.57.16.0
> > Can't bind to dhcp address: Address already in use
> > dhcpd: exiting.
> 
>         Have you been 'sperimenting with this already? I would guess that
> you've started it once successfully and it's still running. Try this and
> see if it tells you anything: ps -ax | grep -i dhcpd
> 
> If an old one is running, kill that process and start over. Use man kill
> if you need info on that.
> 
> Good luck,
> 
> Doug