<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>I am using ISC dhcp-4.2.4. Once client gets ipv6 address, server stores lease information in lease file as mentioned below:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>ia-na "\271&\000\016\000\001\000\001\023\2775\211\000&\271\324\253\361" {<o:p></o:p></p><p class=MsoNormal> cltt 1 2012/07/30 11:43:55;<o:p></o:p></p><p class=MsoNormal> iaaddr 2001:4408::eeee:eeee:eeee:aa {<o:p></o:p></p><p class=MsoNormal> binding state active;<o:p></o:p></p><p class=MsoNormal> preferred-life 604800;<o:p></o:p></p><p class=MsoNormal> max-life 2592000;<o:p></o:p></p><p class=MsoNormal> ends 3 2012/08/29 11:43:55;<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>But without knowing DUID, It is impossible to identify client. Can we include client DUID field also…<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. 24305091<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>