Administrator Guide

Layer 3 Routing Commands 1564
Default Configuration
Disabled is the default configuration.
Command Mode
Global Configuration mode, Virtual Router Configuration mode
User Guidelines
Use the show ip brief command to determine if routing is enabled or disabled.
When in virtual router configuration mode, this command operates within
the context of the virtual router instance. When in global config mode, the
command operates on the global router instance.
Virtual Router Configuration mode is only available on the N3000/N4000
switches.
Example
The following example enables IPv4 and IPv6 routing for VLAN 15
console(config)#ip routing
ip unnumbered
This command is used to identify an interface as an unnumbered interface
and specify the numbered interface providing the borrowed address. The
numbered interface must be a loopback interface. To stop borrowing an
address, use the no form of the command.
Syntax
ip unnumbered loopback loopback-id
no ip unnumbered
• loopback-id —The loopback identifier (Range 0–7)
Default Configuration
The are no ip unnumbered interfaces by default.
Command Mode
Interface (VLAN) Configuration
2CSNXXX_SWUM204.book Page 1564 Monday, January 25, 2016 1:25 PM