Ip Address Unnumbered - HP 6125XLG Command Reference Manual

ip address unnumbered

Use ip address unnumbered to configure the current interface as IP unnumbered to borrow an IP address
from the specified interface.
Use undo ip address unnumbered to disable IP unnumbered on the interface.
Syntax
ip address unnumbered interface interface-type interface-number
undo ip address unnumbered
Default
The interface does not borrow IP addresses from other interfaces.
Views
Tunnel Interface view
Predefined user roles
network-admin
Parameters
interface interface-type interface-number: Specifies an interface from which the current interface can
borrow an IP address.
Usage guidelines
Typically, you assign an IP address to an interface either manually or through DHCP. If the IP addresses
are not enough, or the interface is used only occasionally, you can configure an interface to borrow an
IP address from other interfaces. This is called IP unnumbered, and the interface borrowing the IP address
is called IP unnumbered interface.
Multiple interfaces can use the same unnumbered IP address. If an interface has multiple manually
configured IP addresses, only the primary IP address manually configured can be borrowed.
Create a tunnel interface before you enter the tunnel interface view. For more information about tunnel
interfaces, see Layer 3—IP Services Configuration Guide.
Examples
# Configure the interface Tunnel 1 to borrow the IP address of VLAN-interface 100.
<Sysname> system-view
[Sysname] interface Tunnel 1
[Sysname-Tunnel1] ip address unnumbered interface vlan-interface 100
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