Reference Guide

718 IPv6 Commands
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Dell Plasma-ARC
2+3\new_system_mifs_ARC3_latest\IPv6_Router.fm
DELL CONFIDENTIAL – PRELIMINARY 5/21/14 - FOR PROOF ONLY
Syntax
ipv6 unreachables
no ipv6 unreachables
Parameters
N/A.
Default Configuration
The sending of ICMP IPv6 unreachable messages is enabled.
Command Mode
Interface Configuration mode
User Guidelines
If the switch receives a Unicast packet destined for itself that uses a protocol
it does not recognize, it sends an ICMPv6 unreachable message to the source.
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:
console(config)# interface vlan 100
console(config-if)# no ipv6 unreachables
console(config-if)# exit
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] | [[ interface-id ] [prefix]]