Enterasys X-Pedition XSR CLI Cli Reference Manual page 243

Syntax
ip unnumbered [type number]
type
number
Syntax of the "no" Form
The no form of this command disables the unnumbered interface:
no ip unnumbered
Mode
Interface configuration:
Default
Disabled
Example
In this example, Serial 1 is given F2ʹs address. The serial port is unnumbered:
XSR(config-if<F2>)#ip address 145.22.4.67 255.255.255.0
XSR(config)#interface serial 1
XSR(config-if<S1>)#ip unnumbered fastethernet 2
ip router-id
This command configures a router identifier, an IPv4 address specified in dotted decimal notation.
It is used in routing protocols such as OSPF to uniquely identify a routing instance.
Syntax
ip router-id [ip-address]
ip-address
Syntax of the "no" Form
The no form of this command removes a router identifier:
no ip router-id
Mode
Global configuration:
Type of another interface on which the router has an assigned IP
address. It cannot be another unnumbered interface.
Number of another interface on which the router has an assigned IP
address. It cannot be another unnumbered interface.
XSR(config-if<xx>)#
IP Address of router.
XSR(config)#
Other IP Commands
XSR CLI Reference Guide 5-167