PLANET XGS3-24042 - Manual (Page 262)

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execute adding, discarding or forwarding operation. Therefore, please check policy configuration of
snooping option37,38 on second device when obtaining the false address or no address is obtained
according to option37,38.
 DHCPv6 server obtains option37,38 of the packets from client by default, if no, it will obtain option37,38
of the packet sent by relay.
 DHCPv6 server only checks whether the first DHCPv6 relay adds option37,38 that means only
option37,38 of the innermost relay-forw is valid in relay packets.