PLANET WGSW-52040 - Manual (Page 514)

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Example:
Configure the reforward policy of DHCPv6 packets with option 37 as keep for DHCPv6 SNOOPING.
Switch(Config)# ipv6 dhcp snooping remote-id policy keep
32.1.15 ipv6 dhcp snooping subscriber-id
Command:
ipv6 dhcp snooping subscriber-id
no ipv6 dhcp snooping subscriber-id
Function:
This command is used to set the form of adding option 38 in received DHCPv6 request packets, of which
is the content of subscriber-id in user-defined option 38 and it is a string with a length of less than
128. The no operation of this command restores subscriber-id in option 38 to vlan name together with port name
such as "Vlan2+Ethernet1/2".
Parameters:
subscriber-id, user-defined content of option 38
Default:
Set subscriber-id in option 38 to vlan name together with port name.
Command Mode:
Port mode
Usage Guide:
Because option 38 information added by switch may associate with third-party DHCPv6 servers, users can specify
subscriber-id content based on server condition when standard subscriber-id of the switch cannot satisfy the demand
of server. The vlan name together with physical port name is used as subscriber-id in option 38 by default.
Example:
Enable abc as subscriber-id of DHCPv6 option 38.
Switch(Config-if-Ethernet1/1)#ipv6 dhcp snooping subscriber-id abc