#Cisco ios copy log tftp how to#
#Cisco ios copy log tftp upgrade#
#Cisco ios copy log tftp series#
#Cisco ios copy log tftp download#

Table 3-1: Mapping Old Commands to New Commands Old CommandĬopy rcp running-config (for an rcp server)Ĭopy tftp running-config (for a TFTP server)Ĭopy rcp startup-config (for an rcp server)Ĭopy tftp startup-config (for a TFTP server)Ĭopy running-config rcp (for an rcp server)Ĭopy running-config tftp (for a TFTP server)įor access server configuration information and examples, refer to the 'Loading System Images, Microcode Images, and Configuration Files' chapter in the Access and Communication Servers Configuration Guide. Support for these commands will cease in a future release. Note Commands in this chapter that have been replaced by new commands continue to perform their normal functions in the current release but are not longer documented. Configuration files contain commands entered to customize the functions of the access server.įor access server configuration information and examples, refer to the 'Loading System Images and Configuration Files' chapter in the Access and Communication Servers Configuration Guide. System images contain the system software. This chapter provides detailed descriptions of the commands used to load and copy system images and configuration files. Recipe 17.2 Recipe 17.6 Recipe 17.System Image and Configuration File Load Commands Changing the IOS version in flash would cause serious problems, so the router will not allow you to do it.

#Cisco ios copy log tftp series#

In particular, Cisco 2500 series routers actually run directly from the IOS image in flash instead of copying an image of the IOS into processor memory at boot time. Note that some types of Cisco routers do not support this method for uploading IOS images. Then the second command actually copies the image into the router's flash memory: This step is only necessary if there is not enough flash space available to load the new IOS file. In our example, the first snmpset command erases the flash: The one important difference is the step that erases the flash before the uploading commences. The method shown for uploading a new IOS file to a router is similar to the method for downloading an IOS file. So a good procedure for doing a large number of upgrades like this would be to run a script to copy the new images to the routers, and then you should check each router to ensure that the upload completed successfully before rebooting. The router will continue running the old version until it reboots.

It is safe to copy a new IOS image into the router's flash memory on most Cisco routers. You should be careful when doing this, however. This is useful because it makes it easy to build a script to automate changing the IOS versions on a large number of similar routers.

#Cisco ios copy log tftp how to#

The second example shows how to use SNMP to start a TFTP upload of a new IOS version. It is also useful if you discover that a particular IOS version behaves better, and you want to copy that version into other routers. Then, if you have problems with a router and need to replace it, you can easily make sure that the new device is running the same IOS version as the old one. This command is useful because it allows you to easily build a central library of all running IOS versions on your network. The last argument,, is the name of the file as it will appear on the TFTP server. You concatenate the server's IP address, which is 172.25.1.1 in this example, to the end of the OID value. The OID value of the Cisco MIB variable that instructs the router to transfer its IOS image is. In this case, Router is the router's name or IP address, and we use ORARW for the read-write SNMP community string. This snmpset command instructs the router to use TFTP to copy its IOS file to a particular file on the specified server: On Unix computers, the touch command creates a file, and the chmod command gives it the proper file attributes. Most TFTP servers will not accept an incoming transfer unless the destination file is world writable.

#Cisco ios copy log tftp download#

The first example demonstrates how to use SNMP to force a router to download its IOS file to a TFTP server. Use the following commands to upload an IOS file from your TFTP server to the router's flash memory:įreebsd% snmpset v1 -c ORARW Router.

Then you can download a copy of your router's current IOS file to your TFTP server with the following Unix commands:įreebsd% touch /tftpboot/įreebsd% chmod 666 /tftpboot/įreebsd% snmpset v1 -c ORARW Router. Router(config)# snmp-server community ORARW rw

#Cisco ios copy log tftp upgrade#

You want use SNMP to remotely upgrade a router's IOS.īefore you can upload or download the router's IOS image to a TFTP server, you have to set up a valid read-write SNMP community string:Įnter configuration commands, one per line.