<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Just like ISC dhcpv4, do we have any option to deny host based on mac/duid.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>And secondly, In my network due to some bug in HP printer, it is generating many DHCP REPLY request per second and hence keeping dhcp busy.<o:p></o:p></p><p class=MsoNormal>Do we have any option to deny such client in dhcp itself as It seems impossible to block such client using mac address as the dhcp packets are relayed by an router<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please help<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>--<o:p></o:p></p><p class=MsoNormal>Thanks & Regards<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Amit Kumar<o:p></o:p></p><p class=MsoNormal>Scientific Officer<o:p></o:p></p><p class=MsoNormal>Operation and Routing Group<o:p></o:p></p><p class=MsoNormal>M/O Communication and IT, NIC, A- Block, CGO Complex, New Delhi<o:p></o:p></p><p class=MsoNormal>Ph. +911122900332, NKN VoIP:7332<o:p></o:p></p><p class=MsoNormal>Mob. +919910611621<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>