Cisco Systems 3750E manual Creating a Configuration File By Using a Text Editor

Appendix B Working with the Cisco IOS File System, Configuration Files, and Software Images

Working with Configuration Files

Creating a Configuration File By Using a Text Editor

When creating a configuration file, you must list commands logically so that the system can respond appropriately. This is one method of creating a configuration file:

Step 1 Copy an existing configuration from a switch to a server.

For more information, see the “Downloading the Configuration File By Using TFTP” section on page B-12, the “Downloading a Configuration File By Using FTP” section on page B-14, or the “Downloading a Configuration File By Using RCP” section on page B-18.

Step 2 Open the configuration file in a text editor, such as vi or emacs on UNIX or Notepad on a PC. Step 3 Extract the portion of the configuration file with the desired commands, and save it in a new file.

Step 4 Copy the configuration file to the appropriate server location. For example, copy the file to the TFTP directory on the workstation (usually /tftpboot on a UNIX workstation).

Step 5 Make sure the permissions on the file are set to world-read.

Copying Configuration Files By Using TFTP

You can configure the switch by using configuration files you create, download from another switch, or download from a TFTP server. You can copy (upload) configuration files to a TFTP server for storage.

These sections contain this configuration information:

•Preparing to Download or Upload a Configuration File By Using TFTP, page B-11

•Downloading the Configuration File By Using TFTP, page B-12

•Uploading the Configuration File By Using TFTP, page B-12

Preparing to Download or Upload a Configuration File By Using TFTP

Before you begin downloading or uploading a configuration file by using TFTP, do these tasks:

•Ensure that the workstation acting as the TFTP server is properly configured. On a Sun workstation, make sure that the /etc/inetd.conf file contains this line:

tftp dgram udp wait root /usr/etc/in.tftpd in.tftpd -p -s /tftpboot

Make sure that the /etc/services file contains this line:

tftp 69/udp

Note You must restart the inetd daemon after modifying the /etc/inetd.conf and /etc/services files. To restart the daemon, either stop the inetd process and restart it, or enter a fastboot command (on the SunOS 4.x) or a reboot command (on Solaris 2.x or SunOS 5.x). For more information on the TFTP daemon, see the documentation for your workstation.

•Ensure that the switch has a route to the TFTP server. The switch and the TFTP server must be in the same subnetwork if you do not have a router to route traffic between subnets. Check connectivity to the TFTP server by using the ping command.

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

OL-9775-02 B-11