Reference Guide

978 | Neighbor Discovery Protocol (NDP)
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• ipv6 nd suppress-ra
• ipv6 neighbor
• show ipv6 neighbors
clear ipv6 neighbors
e
Delete all entries in the IPv6 neighbor discovery cache, or neighbors of a specific interface. Static
entries will not be removed using this command.
Syntax
clear ipv6 neighbors [ipv6-address] [interface]
Parameters
Command Modes
EXEC
EXEC Privilege
ipv6 nd managed-config-flag
e
Set the managed address configuration flag in the IPv6 router advertisement. The description of this
flag from RFC 2461 (http://tools.ietf.org/html/rfc2461) is:
M: 1-bit “Managed address configuration” flag. When set, hosts use the administered (stateful)
protocol for address autoconfiguration in addition to any addresses autoconfigured using stateless
address autoconfiguration. The use of this flag is described in:
Thomson, S. and T. Narten, “IPv6 Address Autoconfiguration”, RFC 2462, December 1998.
Syntax
ipv6 nd managed-config-flag
To clear the flag from the IPv6 router advertisements, use the no ipv6 nd managed-config-flag
command.
Defaults
The default flag is 0.
Command Modes
INTERFACE
ipv6-address Enter the IPv6 address of the neighbor in the x:x:x:x::x format to remove a
specific IPv6 neighbor.
The
:: notation specifies successive hexadecimal fields of zero.
interface interface
To remove all neighbor entries learned on a specific interface, enter the
keyword
interface followed by the interface type and slot/port or number
information of the interface:
• For a Fast Ethernet interface, enter the keyword
fastEthernet
followed by the slot/port information.
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For a Port Channel interface, enter the keyword
port-channel
followed by a number:
E-Series Range: 1 to 32 for EtherScale, 1 to 255 for TeraScale and 1 to
512 for ExaScale.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port information.
• For a VLAN, enter the keyword
vlan followed by the VLAN ID. The
range is from 1 to 4094.