Radio Shack FC-241 manual Configuring a Router to Use rcp, FC-251

Configuring Additional File Transfer Functions

Configuring a Router to Use rsh and rcp

The following example executes the “ls -a” command in the home directory of the user sharon on mysys.cisco.com using rsh:

Router# enable

Router# rsh mysys.cisco.com /user sharon ls -a

.

..

.alias

.cshrc

.emacs

.exrc

.history

.login

.mailrc

.newsrc

.oldnewsrc

.rhosts

.twmrc

.xsession jazz Router#

Configuring a Router to Use rcp

The rcp copy commands rely on the rsh server (or daemon) on the remote system. To copy files using rcp, you do not need to create a server for file distribution, as you do with TFTP. You need only to have access to a server that supports the remote shell (rsh). (Most UNIX systems support rsh.) Because you are copying a file from one place to another, you must have read permission on the source file and write permission on the destination file. If the destination file does not exist, rcp creates it for you.

Although our rcp implementation emulates the functions of the UNIX rcp implementation—copying files among systems on the network—our command syntax differs from the UNIX rcp command syntax. Our rcp support offers a set of copy commands that use rcp as the transport mechanism. These rcp copy commands are similar in style to our TFTP copy commands, but they offer an alternative that provides faster performance and reliable delivery of data. These improvements are possible because the rcp transport mechanism is built on and uses the Transmission Control Protocol/Internet Protocol (TCP/IP) stack, which is connection-oriented. You can use rcp commands to copy system images and configuration files from the router to a network server and vice versa.

You can also enable rcp support to allow users on remote systems to copy files to and from the router.

Configuring the Router to Accept rcp Requests from Remote Users

To configure the Cisco IOS software to support incoming rcp requests, use the following commands in global configuration mode:

	Command			Purpose
Step 1
	ip	rcmd	remote-hostlocal-username {ip-address	Create an entry in the local authentication database
	host} remote-username [enable [level]]			for each remote user who is allowed to execute rcp
				commands.
Step 2
	ip	rcmd	rcp-enable	Enable the software to support incoming rcp requests.

To disable the software from supporting incoming rcp requests, use the no ip rcmd rcp-enablecommand.

Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.1

FC-251