Specifications
Table Of Contents
- Contents
- Preface
- Getting Started
- Basic Router Configuration
- Interface Port Labels
- Viewing the Default Configuration
- Information Needed for Configuration
- Configuring Basic Parameters
- Configuring Static Routes
- Configuring Dynamic Routes
- Configuring Enhanced IGRP
- Basic Router Configuration
- Configuring Your Router for Ethernet and DSL Access
- Sample Network Deployments
- Configuring PPP over Ethernet with NAT
- Configuring PPP over ATM with NAT
- Configuring a LAN with DHCP and VLANs
- Configuring a VPN Using Easy VPN and an IPSec Tunnel
- Configure the IKE Policy
- Configure Group Policy Information
- Apply Mode Configuration to the Crypto Map
- Enable Policy Lookup
- Configure IPSec Transforms and Protocols
- Configure the IPSec Crypto Method and Parameters
- Apply the Crypto Map to the Physical Interface
- Create an Easy VPN Remote Configuration
- Verifying Your Easy VPN Configuration
- Configuration Example
- Configuring VPNs Using an IPSec Tunnel and Generic Routing Encapsulation
- Configuring a Simple Firewall
- Configuring a Wireless LAN Connection
- Sample Configuration
- Configuring Additional Features and Troubleshooting
- Additional Configuration Options
- Configuring Security Features
- Configuring Dial Backup and Remote Management
- Troubleshooting
- Reference Information
- Cisco IOS Software Basic Skills
- Concepts
- ROM Monitor
- Common Port Assignments
C-7
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Appendix C ROM Monitor
Console Download
enabled are:
diagnostic mode
console baud: 9600
boot: the ROM Monitor
do you wish to change the configuration? y/n [n]:
You must reset or power cycle for new config to take effect
Console Download
You can use console download, a ROM monitor function, to download either a software image or a
configuration file over the router console port. After download, the file is either saved to the
CompactFlash memory module or to main memory for execution (image files only).
Use console download when you do not have access to a TFTP server.
Note If you are using a PC to download a Cisco IOS image over the router console port at 115,200 bps, ensure
that the PC serial port is using a 16550
universal asynchronous transmitter/receiver (UART). If the PC
serial port is not using a 16550
UART, we recommend using a speed of 38,400 bps or less when
downloading a Cisco IOS image over the console port.
Command Description
The following are the syntax and descriptions for the xmodem console download command:
xmodem [-cyrx] destination_file_name
c Optional. Performs the download using 16-bit cyclic redundancy check (CRC-16) error
checking to validate packets. Default is 8-bit CRC.
y Optional. Sets the router to perform the download using Ymodem protocol, the default
is Xmodem protocol. The protocols differ as follows:
• Xmodem supports a 128-block transfer size. Ymodem supports a 1024-block
transfer size.
• Ymodem uses CRC-16 error checking to validate each packet. Depending on the
device that the software is being downloaded from, this function might not be
supported by Xmodem.
r Optional. Image is loaded into DRAM for execution. The default is to load the image into
flash memory.
x Optional. Image is loaded into DRAM without being executed.
destination_
file_name
Name of the system image file or the system configuration file. In order for the router to
recognize it, the name of the configuration file must be router_confg.