IPv6 Circuitless IP (CLIP) is a virtual interface that is not associated with any physical port. You can use an IPv6 CLIP interface to provide uninterrupted connectivity to your switch as long as an actual path exists to reach the device. The system treats the IPv6 CLIP interface like an IPv6 interface and treats the network associated with the IPv6 CLIP as a local network attached to the device. This route always exists and the circuit is always up because no physical attachment exists.
You can use an IPv6 CLIP address as a logical IPv6 address for network management, as well as for other purposes. The IPv6 CLIP is typically a host address with any prefix length. You can redistribute this address as part of any other routing protocol update, so that the CLIP address is known to neighbors and available for use in routing or other types of connectivity. You can use IPv6 CLIP for many kinds of management connectivity, such as Telnet or SSH. You can also use IPv6 CLIP as a source IP address for sending Syslog messages.
For scaling information on IPv6 CLIP, see Fabric Engine Release Notes.
This section describes the restrictions and limitations associated with IPv6 CLIP.
Stateless address autoconfiguration (SLAAC) is not supported on IPv6 CLIP interfaces.
IPv6 CLIP does not support link-local address configuration.
Note
This flag does not apply to all hardware platforms. For more information, see Fabric Engine Feature Support Matrix.
Neighbor discovery (ND) does not run on an IPv6 CLIP interface. Therefore, the system does not detect duplicate IPv6 address assignment to this interface.
Multiple IPv6 address configuration on an IPv6 CLIP interface is not supported.
IPv6 CLIP interface is enabled by default and it cannot be disabled.
You cannot configure an IPv6 CLIP interface as the source or destination endpoint of an IPv6-in-IPv4 tunnel.