Show Ipv6 Interface - Cisco 300 Series Cli Manual

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If the switch receives a datagram that it cannot deliver to its ultimate destination
because it knows of no route to the destination address, it replies to the originator
of that datagram with an ICMP host unreachable message.
Example
The following example disables the generation of ICMPv6 unreachable messages,
as appropriate, on an interface:
switchxxxxxx(config)#
switchxxxxxx(config-if)#
switchxxxxxx(config-if)#

27.13 show ipv6 interface

Use the show ipv6 interface command in user EXEC or privileged EXEC mode to
display the usability status of interfaces configured for IPv6.
Syntax
show ipv6 interface [brief] | [
Parameters
•
brief—Displays a brief summary of IPv6 status and configuration for each
interface where IPv6 is defined.
•
interface-id —Interface identifier about which to display information.
Default Configuration
Option brief - all IPv6 interfaces are displayed.
Command Mode
User EXEC mode
Privileged EXEC mode
interface vlan 100
no ipv6 unreachables
exit
interface-id
]
OL-32830-01 Command Line Interface Reference Guide
IPv6 Commands