DELL 9.8(0.0) User Manual

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Tunneling 
Tunneling is supported on Dell Networking OS.
ip unnumbered
Configure a tunnel interface to operate without a unique IPv4 address and select the interface from 
which the tunnel borrows its address.
Syntax
ip unnumbered {interface-type slot/port}
To set the tunnel back to default logical address use the no ip unnumbered 
command. If the tunnel was previously operational, the tunnel interface is 
operationally down unless you also configure the tunnel IPv6 address.
Parameters
interface-type 
interface-
number
Enter the interface type, followed by a slot number.
Defaults
None
Command 
Modes
INTERFACE TUNNEL
Command 
History
Version
Description
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.
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.
1808
Tunneling