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</o:shapelayout></xml><![endif]--></head><body lang=ES-AR link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>Dear ISC Support Team,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>I hope this email finds you well. I am reaching out to seek guidance on integrating Kea DHCP with DHCP requests originating from DOCSIS cable modems.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>My inquiry revolves around configuring the DHCP Server to, upon receiving a DHCP Discover and detecting that it originates from a cable modem, utilize the client-class option as follows:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>"client-classes": [<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'> {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'> "name": "Cablemodem",<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'> "test": "substring(option[60].hex, 0, 6) == 'docsis'",<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'> "next-server": "192.168.10.43",<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'> "boot-file-name": "default.bin"<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'> }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>],<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>The goal is for Kea DHCP, in responding to the boot-file-name, to execute a query against an SQL table. This query would seek the MAC address of the cable modem, present in both the Client MAC address field ("ARRISGro_4c:d4:a2" or "98:6b:3d:4c:d4:a2") and option 82 ("Agent Information Option"). If the MAC is found in the table, it would fetch the corresponding value from the boot-file field. If no match is found, the response would default to "default.bin".<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>I would appreciate any guidance or suggestions you can provide to achieve this scenario.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>Thank you in advance for your time and assistance.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></p></div></body></html>