Cisco Routing and Switching series--------NA series

Chapter III

One, managing Cisco IOS Configuration

1 , there are two ways

a , Runing-config

the current configuration command, which is saved in the RAM (volatile memory).

Device power down, configuration is lost!!

b , Startup-config

Save the configuration to NVRAM (nonvolatile memory).

No control device changes (restart, power off, etc.) configuration will not be lost!!

router#copy runing-config startup-config----- Save the current configuration to NVRAM in

Or

Router#write

In addition to saving our configuration to NVRAM , you can also save our configuration to an external server or to a third party!

3CDaemon Experiment:

Experimental topology:

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Is the topology of this experiment, where the f0/0 port of R1 and R2 is 10.10.10.0 network segment, R1 and CLOUD1 are 12.12. 12.0 network segment, CLOUD1 bridging is Microsoft's virtual Loopback Adapter 4.

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We bridged the VMware Workstation VMnet7 Bridge to the adapter 4. Then we Window7 the Network Bridge to the VMNET7, so R1 realized and Win7 interconnection, and can be set up in the same network segment.

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After configuring the address, we test the connectivity of Win7 and R1:

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Determine connectivity and now start running config to external server

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At this time we found that it was saved on the Win7 desktop, this file cannot be opened with Notepad, because the format is not open, it is recommended to use WordPad open.

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We have installed 3CDaemon of this TFTP server software in the virtual machine (recommended, you can use this software to update Cisco router iOS)

of course, not only can we put running config Copy to an external server, we can also copy the configuration from the external server to running config It's a merger , it's just the beginning . running config , keep it , and the rest are copied to running config the.

CLI the shortcut:

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f0/0 indicates that the 0 on the board card 0 number interface.   

The router plugged in to the electrical interface is Down , and the interface of the switch is plugged in up the.

is the interface state of the router:

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is the interface status of the switch:

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This article is from the "Boundless" blog, please make sure to keep this source http://shixungan.blog.51cto.com/8883838/1795619

Cisco Routing and Switching series--------NA series