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<div class="moz-cite-prefix">On 15/09/12 15:26, Dwayne Hottinger
wrote:<br>
</div>
<blockquote
cite="mid:CAGzaBQGHe6ZXP_cdnLguW4ZFk_S3aA9h0CiqsTecAgL1_9EQ8w@mail.gmail.com"
type="cite">doesnt the dhcp server broadcast and ask if that ip is
already taken?<br>
</blockquote>
It can ping, you have to set the option. For that to work, the
offender must reply to pings. That is not always the case. This way
you will block the dhcp from using the addresses that have been
manually set in hosts.<br>
<br>
The question was if the static hosts can be blocked, I assume that
by static you mean hosts that set the IP manually and not a static
host statement in dhcp.<br>
<br>
Dhcp is not an access control system, switches, routers, other
network equipment does a much better job. You may be able to block
those devices by MAC address, as you want to use the IPs for other
hosts.<br>
<br>
If you have host statements with fixed addresses, those addresses
must be outside the ranges used for dynamic assignment or they will
be used both ways. A fixed address statement does not prevent the
same address being handed out to dynamic clients.<br>
<br>
<blockquote
cite="mid:CAGzaBQGHe6ZXP_cdnLguW4ZFk_S3aA9h0CiqsTecAgL1_9EQ8w@mail.gmail.com"
type="cite"><br>
<div class="gmail_quote">On Sat, Sep 15, 2012 at 8:55 AM, <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:networkgroup@bbnl.co.in" target="_blank">networkgroup@bbnl.co.in</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Some of the
clients under our network is using static in same pool which
we have create in dhcp.So we are facing ip collision every
time .Is their any way to block static ips under same network?<br>
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</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div>Dwayne Hottinger</div>
<div>Network Administrator </div>
<div>Harrisonburg City Public Schools</div>
<br>
<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Best regards
Sten Carlsen
No improvements come from shouting:
"MALE BOVINE MANURE!!!"
</pre>
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