Quick Reference Guide

234 IPv6 Addressing
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Ryan - old template\IPv6Addressing.fm
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Command Mode
Interface configuration mode (Ethernet, VLAN, Port-channel).
User Guidelines
• If a packet addressed to one of the interface's IP address with TCP/UDP port not assigned is received, and
ICMP unreachable messages is enabled, the device sends an ICMP unreachable message. To disable
sending ICMP unreachable messages on the interface, use the
no ipv6 unreachables command
Example
The following example enables the generation of Internet Control Message Protocol for IPv6 (ICMPv6)
unreachable messages for any packets arriving on interface g1.
ipv6 default-gateway
The ipv6 default-gateway Global Configuration mode command defines an IPv6 default gateway. Use the
no form of this command to remove the default gateway.
Syntax
• ipv6 default-gateway ipv6-address
• no ipv6 default-gateway
• ipv6-address — IPv6 address of the next hop that can be used to reach that network. When the IPv6
address is a Link Local address (IPv6Z address), the outgoing interface name must be specified. Refer
to the usage guidelines for the interface name syntax.
Default Configuration
No default gateway is defined.
Command Mode
Global Configuration mode.
User Guidelines
• The IPv6Z address format: < ipv6-link-local-address >%< interface-name >
–
interface-name — vlan < integer > | ch < integer > | isatap < integer > | < physical-port-name > | 0
–
integer — < decimal-number > | < integer >< decimal-number >
–
decimal-number — 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name — Designated port number, for example 1/e16.
Console# Console (config)# interface g1
Console (config-if)# ipv6 unreachables