Users Guide

Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.4(0.1) Introduced on the S4810, S4820T, S6000 and Z9000.
9.3(0.1) Introduced on the S5000 and Z9000.
Usage Information
The ip unnumbered command fails in two conditions:
• If the logical ip address is configured.
• If Tunnel mode is ipv6ip (where ip address over tunnel interface is not possible).
To ping the unnumbered tunnels, the logical address route information must be
present at both the ends.
NOTE: The ip unnumbered command can specify an interface name that does not exist or does not
have a configured IPv6 address. The tunnel interface is not changed to operationally up until the logical IP
address is identified from one of the address family.
ipv6 unnumbered
Configure a tunnel interface to operate without a unique IPv6 address and select the interface from which the
tunnel borrows its address.
Syntax
ipv6 unnumbered {interface-type interface-number}
To set the tunnel back to default logical address use the no ipv6 unnumbered
command. If the tunnel was previously operational, the tunnel interface is operationally
down unless you also configure the tunnel IPv4 address.
Parameters
interface-type
interface-number
Enter the interface type, followed by the type, and then the slot/
port/subport information.
Defaults None.
Command Modes INTERFACE TUNNEL
Tunneling 2001