Reason why the PC cannot go online when an S series switch functions as a DHCPv6 relay agent

The cause is as follows:
If the PC directly connects to a switch, check whether there are statistics on multicast packets on the switch interface connected to the PC after the network cable is connected. If there are no statistics on the inbound interface, the firewall function of the PC causes DHCPv6 Request messages to be discarded. In this case, disable the firewall and then attempt to obtain IP addresses.

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