Executing a CLI command.

[nishchal.a]

Hello

I wanted to enquire if there is any way by which I can execute a CLI command programmatically or even through an SNMP request.

I need to execute a CLI command(not through telenet etc) on a Cisco 1200 series AP in such a way.

Thanks

Nishchal

[rdanevich]

Assuming you have CiscoWorks.

RME, netconfig, adhoc.

SNMP may also be possible, however this method is much more complex.

[yjdabear]

If you are not rejecting telnet or ssh as the underlying mechanism completely, check out Expect, which makes what you're looking to do a trivial task:

http://expect.nist.gov

http://en.wikipedia.org/wiki/Expect

[Joe Clarke]

The advice thus far has been about executing CLI commands via telnet. This is not what you want. There is a little-known trick where you can execute a CLI command via SNMP. To do this, you need to push a config snippet to the device's RUNNING CONFIG using the CISCO-CONFIG-COPY-MIB procedure outlined at http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094aa6.shtml .

Your config snippet should contain the following:

do

end

For example:

do clear line 1

end

If you need to execute a show command, and save the output, you will need to use the redirect feature. For example:

do show ver | redirect flash:show_ver.txt

end

BE VERY CAREFUL you DO NOT do any interactive commands using this trick. If you do, you will lock the config until you next reload the device.

[yjdabear]

In the example above, is "do show ver" without the pipe considered an "interactive" command, i.e., does that lock the config?

[Joe Clarke]

Yes. Do not perform show commands without a redirection.