[lug] DHCP Question

[George Sexton]

I just changed a network over from using DHCP on a Linksys wireless
router/switch to a Linux server. I didn't encounter any noticeable
problems. I just rebooted all of the machines and they came up with a
new address. I did of course, make sure the DHCP service was turned off
on the Linksys before I did the reboot.

-----Original Message-----
From: lug-bounces at lug.boulder.co.us
[mailto:lug-bounces at lug.boulder.co.us] On Behalf Of Andrew J Jenkins
Sent: Sunday, December 07, 2003 12:12 PM
To: lug at lug.boulder.co.us
Subject: Re: [lug] DHCP Question



Another thing that has helped me in the past (for windows DHCP clients,
linux DHCP servers) is to power cycle all the switches in between the
clients and server.  Hubs, being more low-level than switches, don't
matter.

On 12/7/2003, "Dan Ferris" <dan at ferrises.com> wrote:

>That makes sense.  Rebooting doesn't work.  It must keep track of the
>DHCP server MAC in the registry.  I disabled and reenabled the
>interface, which is probably the same thing as ipconfig /release and
>then ipconfig /renew.
>
>Thanks.
>
>Dan
>
>George Sexton wrote:
>
>> Most likely, it kept track of who the lease was issued from and
wanted
>> to renew from them.
>>
>> I would try rebooting all of the affected machines.
>>
>> -----Original Message-----
>> From: lug-bounces at lug.boulder.co.us
>> [mailto:lug-bounces at lug.boulder.co.us] On Behalf Of Dan Ferris
>> Sent: Friday, December 05, 2003 2:12 PM
>> To: Boulder (Colorado) Linux Users Group -- General Mailing List
>> Subject: [lug] DHCP Question
>>
>>
>> Here is some interesting Questions.
>>
>> Last night, I changed out our Microsoft Windows NT DHCP server for a
>> Linux DHCP server running ISC DHCPD.  This morning when I came in,
about
>>
>> a third of the company couldn't talk to the network because their
DHCP
>> hadn't renewed with the new server.  They are all running some
version
>> or another of Microsoft Winblows.
>>
>> I always thought that it didn't matter what computer was a DHCP
server
>> so long as you only had 1 per subnet.  Is this true?  The old server
is
>> completely turned off and the service is set to manual.
>>
>> Is Windows always stupid about DHCP, or is it just me?
>>
>> Dan
>>
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>
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