Cisco 7246VXR - uBR Router Software Configuration Manual page 175

Chapter 2 Configuring the Cable Modem Termination System for the First Time
Using an HDLC-Encapsulated Serial Interface Connection
To set up AutoInstall via a serial line with HDLC encapsulation (the default), you must configure the
existing router. Use the following commands, beginning in global configuration mode:
Command
Step 1 interface serial
interface-number
Step 2 ip address address mask
Step 3
ip helper-address address
Step 4 clock rate bps
Step 5 Ctrl-Z
Step 6 copy running-config
startup-config
In the following example, the existing router's configuration file contains the commands needed to
configure the router for AutoInstall on a serial line using HDLC encapsulation:
Router# more system:startup-config
. . .
interface serial 0
ip address 172.31.10.1 255.255.255.0
ip helper-address 172.31.20.5
. . .
Using an Ethernet, Token Ring, or FDDI Interface Connection
To set up AutoInstall using an Ethernet, Token Ring, or FDDI interface, you must modify the configuration
of the existing router. Use the following commands, beginning in global configuration mode:
Command
Step 1 interface {ethernet | tokenring |
fddi} interface-number
Step 2
ip address address mask
Step 3
ip helper-address address
Step 4 Ctrl-Z
Step 5 copy running-config startup-config Saves the configuration file to your startup configuration. On most
OL-2239-03
Purpose
Configures the serial interface that connects to the new router with
HDLC encapsulation (the default), and enters interface configuration
mode for the specified interface number.
Enters an IP address for the interface. The host portion of the address
must have a value of 1 or 2. (AutoInstall over Frame Relay does not have
this address constraint.)
Configures a helper address for the serial interface to forward broadcasts
associated with the TFTP, BOOTP, and DNS requests.
(Optional) Configures a DCE clock rate for the serial line, unless an
external clock is being used. This step is needed only for DCE appliques.
Exits configuration mode.
Saves the configuration file to your startup configuration. On most
platforms, this step saves the configuration to NVRAM. On the
Cisco7000 family, this step saves the configuration to the location
specified by the CONFIG_FILE environment variable.
Purpose
Enters interface configuration mode for the specified LAN
interface.
Specifies an IP address for the interface.
(Optional) Configures a helper address to forward broadcasts
associated with the TFTP, BOOTP, and DNS requests.
Exits configuration mode.
platforms, this step saves the configuration to NVRAM. On the
Cisco7000 family, this step saves the configuration to the location
specified by the CONFIG_FILE environment variable.
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
Configuring the Cisco uBR7200 Series Using AutoInstall
2-13