Quick Reference Guide

232 IPv6 Addressing
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DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Syntax
• ipv6 address ipv6-address/prefix-length [ eui-64 ] [ anycast ]
•
no ipv6 address [ ipv6-address/prefix-length ] [ eui-64 ]
•
ipv6-address — The IPv6 network assigned to the interface. The address is specified in hexadecimal
using 16-bit values between colons.
•
prefix-length — The length of the IPv6 prefix. A decimal value that indicates how many of the high-
order contiguous bits of the address comprise the prefix (the network portion of the address). A slash
mark must precede the decimal. (Range:
3-128 only 64 when the eui-64 parameter is used)
• eui-64 — Specifies to build an interface ID in the low order 64 bits of the IPv6 address based on the
interface MAC address.
•
anycast — Indicates that this address is an anycast address.
Default Configuration
No IP address is defined for the interface.
Command Mode
Interface Configuration (Ethernet, VLAN, Port-channel) mode. Cannot be configured for a range of
interfaces (range context).
User Guidelines
• If the value specified for the /prefix-length argument is greater than 64 bits, the prefix bits have precedence
over the interface ID.
• Using the
no ipv6 address command without arguments removes all manually configured IPv6 addresses
from an interface, including link local manually configured addresses.
Example
The following example configures an IPv6 address FE80::260:3EFF:FE11:6770 for interface g1.
ipv6 address link-local
The ipv6 address link-local Interface Configuration mode command configures an IPv6 link-local address
for an interface. Use the no form of this command to return to the default link local address on the interface.
Syntax
• ipv6 address ipv6-address link-local
• no ipv6 address link-local
Console# Console (config)# interface g1
Console (config-if)# ipv6 address FE80::260:3EFF:FE11:6770