3Com 10014299 Configuration Example I. Configuration Requirements, Display IP address unnumbered

			IP Address Overview 323
	Table 355 Configure IP address unnumbered
	Operation		Command
	Activate IP address unnumbered		ip address unnumbered
			interface-type
			interface-number
	Deactivate IP address unnumbered		undo ip address unnumbered
	By default, the interface has no IP address.
2 Display IP address unnumbered
	Table 356 Display IP address unnumbered
	Operation	Command
	Display information of interface borrowing IP	display interfaces [type
	address	number]
	Display the current configuration information.	display current-configuration

Configuration Example I. Configuration Requirements

Suppose the headquarters of a company is in Beijing, with subsidiary offices in Shenzhen and Shanghai and one office in Wuhan. R is the headquarters router, which connects the subsidiaries and office routers R1, R2 and R3 via PSTN. The four routers R, R1, R2 and R3 all have its serial port for dialing and one Ethernet interface to connect with local network.

II. Networking Diagram

Figure 120 Networking diagram of IP address unnumbered configuration

R1 ( Shenzhen)

Router

R2 (Shanghai)

Router

PSTN

R( Beijing Headquarter)

Router

R3 ( Wuhan)

Router

III.Configuration Procedure 1 Configure headquarters router R

[Router-Ethernet0]ip address 172.16.10.1 255.255.255.0

aBorrow IP address of Ethernet interface 0:

[Router-Serial0]ip address unnumbered Ethernet0

[Router-Serial0] link-protocol ppp

bConfigure routing to Ethernet segment of Shenzhen router R1:

[Router] ip route-static 172.16.20.0 255.255.255.0 172.16.20.1

cConfigure the interface routing to Shenzhen router R1 serial port

[Router] ip route-static 172.16.20.1 255.255.255.255 serial0