CLI Reference Guide-R01

Chapter 30 | IP Interface Commands
ND Snooping
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Command Usage
◆ In general, interfaces facing toward to the network core, or toward routers
supporting the Network Discovery protocol, are configured as trusted
interfaces.
◆ RA messages received from a trusted interface are added to the prefix table and
forwarded toward their destination.
◆ NS messages received from a trusted interface are forwarded toward their
destination. Nothing is added to the dynamic user binding table.
Example
Console(config)#interface ethernet 1/1
Console(config-if)#ipv6 nd snooping trust
Console(config-if)#
clear ipv6 nd
snooping binding
This command clears all entries in the dynamic user address binding table.
Syntax
clear ipv6 nd snooping binding
Command Mode
Privileged Exec
Example
Console#clear ipv6 nd snooping binding
Console#show ipv6 nd snooping binding
MAC Address IPv6 Address Lifetime VLAN Interface
-------------- -------------------------------------- ---------- ---- ---------
Console#
clear ipv6 nd
snooping prefix
This command clears all entries in the address prefix table.
Syntax
clear ipv6 nd snooping prefix [interface vlan vlan-id]
vlan-id - VLAN ID. (Range: 1-4094)
Command Mode
Privileged Exec
Example
Console#clear ipv6 nd snooping prefix
Console#show ipv6 nd snooping prefix
Prefix entry timeout: (seconds)
Prefix Len Valid-Time Expire VLAN Interface