User Manual UMN:CLI
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untrusted interfaces.
8.6.2.5 Specifying DHCPv6 Snooping Binding Entry
The DHCPv6 snooping binding table contains a hardware address, IPv6 address, lease
time, VLAN ID, and port information that correspond to the valid interfaces of the system.
To manually add DHCPv6 snooping binding entry, use the following command.
ipv6 dhcp snooping binding <1-
4094> PORT X:X::X:X MAC-
ADDR <120-2147483637>
Adds the static entry to the DHCPv6 snooping binding
table.
1-4094: VLAN ID
PORT: port number
X:X::X:X: IPv6 address
MAC-ADDR: DHCPv6 client’s MAC address
120-2147483637: Expiry time (unit: second)
To remove the configured entry from DHCPv6 snooping binding table, use the following
command.
clear ipv6 dhcp snooping
binding PORT {X:X::X:X | all}
Removes the static entry from the DHCPv6 snooping
table.
PORT: port number
X:X::X:X: IPv6 address
8.6.2.6 DHCP Snooping Option
DHCP snooping-enabled switch may receive DHCP messages with various different
options from clients, which cause DHCP server hard to manage client’s information in the
perspective of data consistency. That’s why this function is necessary.
The switch operating DHCP snooping can modify or attach an option field of the DHCP
messages with the defined snooping option and can forward them to DHCP server. The
snooping option can be applied on a port basis or on entire ports.
Before using this function, a global DHCPv6 option format should be created and
configured. For details of setting the DHCP option format, refer to the 8.6.4 DHCPv6
Option.
To enter the DHCPv6 option mode, use the following command.
ipv6 dhcp option format NAME
Enters the DHCPv6 option mode to configure the
DHCPv6 option format.
NAME: DHCPv6 option format name
no ipv6 dhcp option format
NAME
Deletes the given DHCPv6 option format.
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