Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

IP Unnumbered Interfaces Command

interfaces dataplane <interface-name> vif <vif-id> ip unnumbered donor-interface <donor-interface-name>

Configures the virtual interface of the specified data plane as an IP unnumbered interface with the donor interface and preferred address.

set interfaces dataplane interface-name vif vif-id ip unnumbered donor-interface donor_interface-name [ preferred-address ip-address ]
delete interfaces dataplane interface-name vif vif-id ip unnumbered
interface-name
The name of a data plane interface. For more information about the supported interface name formats, refer to Data Plane Interface.
vif-id
The ID of a virtual interface. The ID ranges from 1 through 4094.
donor-interface-name
The name of the donor data plane or loopback interface.
preferred-address ip-address
Specifies the borrowed preferred address to use from the donor interface.

Configuration mode


interfaces {
       dataplane interface-name {
              vif vif-id {
                     ip {
                           unnumbered {
                                  donor-interface donor-interface-name {
                                         preferred-address ip-address
                                  }
                         }
                     }
              }
       }
}

Use this command to configure interfaces as unnumbered interfaces.

Use the set form of this command to configure a data plane interface as an unnumbered interface. The preferred address of the donor interface must be one of the configured addresses on the interface.

Use the delete form of this command to remove an unnumbered interface. To remove the preferred address of the donor interface, use the following command:

delete interfaces dataplane interface-name vif vif-id ip unnumbered donor-interface donor_interface-name preferred-address

This command has no show form. To display information about unnumbered data plane interfaces and donor interfaces, use show interfaces dataplane and show interfaces loopback.

Note: To change a donor interface, first set a new donor interface, then delete the one that you want to change.