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Chapter 27
| IP Interface Commands
IPv6 Interface
show ipv6 neighbors
Example
Console#show ipv6 nd raguard interface ethernet 1/1
Interface RA Guard
--------- --------
Eth 1/ 1
Yes
Console#
This command displays information in the IPv6 neighbor discovery cache.
Syntax
show ipv6 neighbors [vlan vlan-id | ipv6-address]
vlan-id - VLAN ID (Range: 1-4094)
ipv6-address - The IPv6 address of a neighbor device. You can specify either
a link-local or global unicast address formatted according to RFC 2373 "IPv6
Addressing Architecture, " using 8 colon-separated 16-bit hexadecimal
values. One double colon may be used in the address to indicate the
appropriate number of zeros required to fill the undefined fields.
Default Setting
All IPv6 neighbor discovery cache entries are displayed.
Command Mode
Privileged Exec
Example
The following shows all known IPv6 neighbors for this switch:
Console#show ipv6 neighbors
State: I1 - Incomplete, I2 - Invalid, R - Reachable, S - Stale, D - Delay,
P1 - Probe, P2 - Permanent, U - Unknown
IPv6 Address
FE80::2E0:CFF:FE9C:CA10
Console#
Table 158: show ipv6 neighbors - display description
Field
Description
IPv6 Address
IPv6 address of neighbor
Age
The time since the address was verified as reachable (in seconds). A static entry is
indicated by the value "Permanent. "
Link-layer Addr
Physical layer MAC address.
Age
4
– 780 –
Link-layer Addr
State VLAN
00-E0-0C-9C-CA-10
R
1
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