6-7
Cisco Broadband Cable Command Reference Guide
OL-1581-07
Chapter 6 Cable CPE Commands
cable-modem dhcp-proxy
cable-modem dhcp-proxy
To specify that a Dynamic Host Configuration Protocol (DHCP) server should provide an IP address for
the router’s Ethernet interface, for the loopback interface, or for the router’s Network Address
Translation (NAT) address pool, use the
cable-modem dhcp-proxy
command in cable interface
configuration mode. To disable this feature so that you can then manually assign an IP address to the
Ethernet interface or NAT address pool, use the
no
form of this command.
Cisco uBR905, Cisco uBR924, Cisco uBR925 Cable Access Routers, and Cisco CVA122 Cable Voice Adapter
cable-modem dhcp-proxy
{
interface ethernet
number
|
interface loopback
number
|
nat
pool-name
}
no cable-modem dhcp-proxy
{
interface ethernet
number
|
interface loopback
number
|
nat
pool-name
}
Note
This command is available only when the router is configured for routing mode and cannot be used when
the router is configured for DOCSIS-compliant bridging.
Syntax Description
Defaults
No default behavior or values
Command Modes
Interface configuration (cable interface only)
Command History
interface ethernet
number
Identifies the Ethernet interface to be assigned the static IP address from the
DHCP server (always
0
).
interface loopback
number
Identifies the loopback interface to be assigned the static IP address from
the DHCP server (always
0
).
nat
pool-name
Specifies the name of the NAT pool to be created using the IP address and
subnet mask supplied by the DHCP server. (This option is equivalent to
giving the
ip nat pool
pool-name start-ip end-ip
netmask
subnet
command, using the IP address and subnet mask supplied by the DHCP
server.)
Release
Modification
12.1(1)T
This command was introduced on the Cisco uBR924 cable access router.
12.1(3)XL
Support was added for the Cisco uBR905 cable access router.
12.1(5)XU1
Support was added for the Cisco CVA122 Cable Voice Adapter.
12.2(2)XA
Support was added for the Cisco uBR925 cable access router.
12.2(8)YJ
The
loopback
option was added to support automatic configuration of the
IP address on the cable modem tunnel interface for the Cisco uBR905 and
Cisco uBR925 cable access routers.
12.2(15)T
This command was integrated into Cisco IOS Release 12.2(15)T.