CLI Guide
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.4(0.0) Introduced on the MXL.
Usage Information
The ip unnumbered command will fail in two condition:
• If the logical ip address is configured.
• If the tunnel mode is ipv6ip (where ip address over tunnel interface is not
possible).
To ping the unnumbered tunnels the logical address route information should be
present in both the ends.
NOTE: The ip unnumbered command can specify an interface name that does
not yet exist, or does not yet have a configured IPv6 address. The tunnel
interface is not changed to the operationally up state until logically ip address
is identified from the one of the address family.
ipv6 unnumbered
Configure a tunnel interface to operate without a unique explicit IPv6 address and select the interface
from which the tunnel will borrow its address.
Syntax ipv6 unnumbered {interface-type interface-number}
Use the no ipv6 unnumbered command to set the tunnel back to default logical
address. If the tunnel was previously operational, this will make the tunnel interface
operationally down, unless the tunnel also has an IPv4 address configured.
Parameters
interface-type
interface-number
Enter the interface type, followed by the type, slot and port
information.
Defaults None.
Command Modes INTERFACE TUNNEL
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.4(0.0) Introduced on the MXL.
Usage Information
The ip unnumbered command will fail in two condition:
• If the logical ip address is configured.
1480
Tunneling