Ipv6 Unreachables - Cisco 300 Series Cli Manual

44
IPv6 Router Commands
Examples
Example 1—The following example configures a static entry in the IPv6 neighbor
discovery cache for a neighbor with the IPv6 address 2001:0DB8::45A and
link-layer address 0002.7D1A.9472 on VLAN 1:
ipv6 neighbor 2001:0DB8::45A vlan1 0002.7D1A.9472
Example 2—The following example deletes the static entry in the IPv6 neighbor
discovery cache for a neighbor with the IPv6 address 2001:0DB8::45A and
link-layer address 0002.7D1A.9472 on VLAN 1:
no ipv6 neighbor 2001:0DB8::45A vlan1
Example 3 —The following example deletes all static entries in the IPv6 neighbor
discovery cache on VLAN 1:
no ipv6 neighbor vlan1
Example 4—The following example deletes all static entries in the IPv6 neighbor
discovery cache on all interfaces:
no ipv6 neighbor

44.10 ipv6 unreachables

Use the ipv6 unreachables command in Interface Configuration mode to enable
the generation of Internet Control Message Protocol for IPv6 (ICMPv6)
unreachable messages for any packets arriving on a specified interface.
Use the no form of this command to prevent the generation of unreachable
messages.
Syntax
ipv6 unreachables
no ipv6 unreachables
736 78-21075-01 Command Line Interface Reference Guide