Users Guide

• Router mode — When a policy with device role as router is applied on an interface, all the RA packets
are validated based on the configuration information in the policy. Similarly, you can also apply this
mode over any specific VLAN and the validation is performed only for that particular VLAN RA packets.
To configure the IPv6 RA guard, use the following Dell Networking OS commands.
clear ipv6 neighbors
Delete all entries in the IPv6 neighbor discovery cache or neighbors of a specific interface. Static entries are
not removed using this command.
Syntax
clear ipv6 neighbors [vrf vrf-name] [ipv6-address | interface]
Parameters
vrf vrf-name (OPTIONAL) Enter the keyword vrf followed by the name of the
VRF to clear the neighbor corresponding to that VRF.
NOTE: If you do not specify this option, the neighbors in
the default VRF are cleared.
ipv6-address Enter the IPv6 address of the neighbor in the x:x:x:x::x format to
remove a specific IPv6 neighbor.
NOTE: The :: notation specifies successive hexadecimal
fields of zero.
interface interface To remove all neighbor entries learned on a specific interface,
enter the keyword interface then the interface type and slot/
port or number information of the interface:
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port/subport
information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/port information.
• For a port channel interface, enter the keywords port-
channel
then a number.
• For a VLAN interface, enter the keyword vlan then a
number from 1 to 4094.
Command Modes
• EXEC
• EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Neighbor Discovery Protocol (NDP) 1156