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Configuring Subscriber-End Broadband Access Router Features
Configuring Bridging
MC-645
Cisco IOS Multiservice Applications Configuration Guide
voice-port 1
!
!
interface Ethernet0
ip address 10.1.0.33 255.255.0.0
no ip directed-broadcast
ip rip send version 2
ip rip receive version 2
no keepalive
!
interface cable-modem0
ip address 172.16.1.42 255.255.0.0
no ip directed-broadcast
ip rip send version 2
ip rip receive version 2
no keepalive
cable-modem downstream saved channel 699000000 39
no cable-modem compliant bridge
!
router rip
network 4.0.0.0
network 172.16.0.0
!
ip classless
no ip http server
!
line con 0
transport input none
line vty 0 4
!
end
Configuring Bridging
The Cisco uBR900 series cable access router is configured for DOCSIS-compliant transparent bridging
by default. If it becomes necessary to reconfigure the unit for bridging after it has been configured for
routing, you can erase the routing configuration and return the unit to factory default configuration
settings, or you can reconfigure the unit manually using the CLI. To return the cable access router to
factory default settings, see the “Reestablishing DOCSIS-Compliant Bridging” section later in this
chapter for details. To reconfigure the cable access router manually, use the following commands,
beginning in global configuration mode:
Command Purpose
Step 1
uBR924(config)# no service pad
Disables packet assembler/disassembler (PAD)
commands; prevents the Cisco uBR900 series from
accepting incoming or outgoing PAD connections.
Step 2
uBR924(config)# no service password-encryption
Disables password encryption.
Step 3
uBR924(config)# no ip routing
Disables IP routing on the Cisco uBR900 series.
Step 4
uBR924(config)# interface Ethernet0
Enters interface configuration mode for the Ethernet0
interface.
Step 5
uBR924(config-if)# no ip address
Disables the IP address on the Ethernet0 interface.
Step 6
uBR924(config-if)# no ip route-cache
Disables high-speed switching caches for IP routing.