June 2018
420 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.
DHCP IPv6 Configuration in Windows
For those Legrand PDUs using IPv6 addresses, follow this procedure to configure your DHCP server. The
following illustration is based on Microsoft
®
Windows Server 2012 system.
Required Windows IPv6 settings in DHCP:
1. Add a new vendor class for Legrand PDU under IPv6.
a. Right-click the IPv6 node in DHCP to select Define Vendor Classes.
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