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460 Legrand PDU User Guide
Important: The magic cookie is transmitted to and stored in Legrand PDU at the time of executing the
"fwupdate.cfg" commands. The DHCP/TFTP operation is triggered only when there is a mismatch
between the magic cookie in DHCP and the one stored in Legrand PDU. Therefore, you must modify the
magic cookie's value in DHCP when intending to execute the "fwupdate.cfg" commands next time.
IPv6 illustration example in dhcpd6.conf: