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<span id="result_box" class="long_text"><span
style="background-color: rgb(255, 255, 255);" title="">I'm having the
following problem, a client begins randomly sending a storm of requests
DISCOVERY, and DHCP responds with a OFFER, but </span></span><span
id="result_box" class="long_text"><span title="">nothing more than that</span></span><span
id="result_box" class="long_text"><span
style="background-color: rgb(255, 255, 255);" title="">. </span><span
title="">These requests cause denial of service on DHCP. </span><span
style="background-color: rgb(255, 255, 255);" title="">Even removing
the MAC from DHCP, the DISCOVERY continuing.</span></span><span
id="headingtext" class="normaltext"></span><span id="result_box"
class="short_text"><span style="background-color: rgb(255, 255, 255);"
title=""> I tried these versions </span></span>V3.1.1 and 4.1.1-P1<span
id="result_box" class="short_text"><span
style="background-color: rgb(255, 255, 255);" title="">, both have the
same problem. <br>
</span></span><span id="result_box" class="short_text"><span
style="background-color: rgb(255, 255, 255);" title="">The IP
10.40.0.1 is a Cisco CMTS with dhcp relay activated.</span></span><br>
<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPOFFER on 200.XX.XX.XX to
08:10:74:33:3a:af (Router) via 10.14.0.1<br>
Jul 12 12:03:03 gw dhcpd: DHCPDISCOVER from 08:10:74:33:3a:af (Router)
via 10.14.0.1<br>
<br>
Thanks.<br>
<br>
Daniel<br>
<br>
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