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Re: DHCP Problems

daemon@ATHENA.MIT.EDU (Matt White)
Wed Jun 14 13:30:19 1995

Date: Wed, 14 Jun 1995 09:37:21 -0600 (CST)
From: Matt White <whitem@arts.usask.ca>
To: linux-net <linux-net@vger.rutgers.edu>
In-Reply-To: <Pine.LNX.3.91.950614154336.1257A-100000@SPLinux.spl.co.za>

On Wed, 14 Jun 1995, Neil Thompson wrote:

> Hi all,
> 
> We have quite a large WFWG network here, and I'm running a Linux box 
> which acts as our DNS, mailserver & general Internet connection box.  The 
> WFWG network administrator has just come off a course where he's gotten 
> all excited about the NT DHCP setup.  Not wanting to have data duplicated 
> all over the place I set up bootpd (2.4 - the latest on sunsite) to try 
> and test whether it'll do the job.
> 
> Unfortunately, (you knew that was coming didn't you :-), the WFWG box 
> just sits there for a while and then comes up with a message about not 
> being able to find the DHCP server.  This same box with no change in 
> config is able to use the NT DHCP server with no problems.  I have also 
> tried this with a box using Windows 95 Final Beta - same problem. 

Right - there's actually two things you need to get this to work.  First 
of all, you need the DHCP patch to bootp.  It's available on the Samba 
distribution site in the contributed directory:

nimbus.anu.edu.au:/pub/tridge/samba/contributed/DHCP.patch

The other thing you need for that to work is Microsoft TCP/IP-32 3.11b 
Beta - the 3.11a will not work.  The beta should be on ftp.microsoft.com 
(it's called WOLVBETA.EXE, can't remember the path, but it should be the 
same as where the old one came from).

After you get these two pieces, it should work fine.  One problem is that 
linux will complain about UDP checksums:

Jun 14 09:26:57 arts kernel: UDP: bad checksum. From 80E940C6:68 to 
FFFFFFFF:67 ulen 308

That's one of our WFW machines - there's still something not quite right 
with DHCP...but it seems to be on the machine end of it.  However, is it 
ever a lot nicer to deal with administration of these things when all the 
TCP/IP stuff can be set automatically...

--------------------My real computer is an Amiga---------------------
- Matt White                             Matt.White@usask.ca        -
- Network Technical Support              whitem@arts.usask.ca       -
- College of Arts & Science              University of Saskatchewan -
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