DHCP Problems

dhottinger at harrisonburg.k12.va.us dhottinger at harrisonburg.k12.va.us
Mon Sep 28 22:24:48 UTC 2009

I assign fixed Ip addresses through dhcp.   Here is an example from  
one of my subnet config files:

    host some-printer
                 hardware ethernet       xx:xx:xx:xx:xx:xx;
                 fixed-address           xx.xx.x.x;
                 option log-servers      xxx.xxx.xxx.xxx;

We do this for our printers and any other device I want to get the  
same ip over and over again.  Will this not work?


Quoting Niall O'Reilly <Niall.oReilly at ucd.ie>:

> João Kuchnier wrote:
>> Doug,
>> There is now other way to fix this issue?
> 	No.
> 	When you configure a range, you specify that every address
> 	in the range is available for dynamic allocation.  That's
> 	what "range" means, in the configuration language.
>> João K.
>> 2009/9/28 Doug Armstrong <doug at ovationdata.com>:
>>> João Kuchnier wrote:
>>>> Hi everyone!
>>>> I'm having some problems with my DHCP Server configuration.
>>>> I trying to change all my LAN computers to DHCP, however, plenty of
>>>> them needs static IP.
> 	You have to design your addressing plan so that fixed addresses
> 	are in one part of the space, and dynamic ranges in another.
> 	There nothing to stop you having lots of little ranges,
> 	separated by a fixed address here and there, as in Doug's
> 	example, if that's what you need for the situation you've
> 	inherited.
> 	Wishing for some "other way to fix this issue" rather than
> 	the way the configuration language provides is likely to be
> 	as fruitful as wishing Portuguese or Italian were the same as
> 	Spanish.
> 	Best regards,
> 	Niall O'Reilly
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Dwayne Hottinger
Network Administrator
Harrisonburg City Public Schools

"Everything should be made as simple as possible, but not simpler."
-- Albert Einstein

"The hottest places in Hell are reserved for those who, in times of moral
crisis, preserved their neutrality."
-- Dante

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