real noob question

Ok i need to admit this is a noob question, but i really tried to find an answer on wiki, google, forum…

How could i set the status of my device remotely ?
I mean i need to arm or disarm a sensor through an http request :

i tried :
https://fwd2.mios.com/xxx/xxx/xxx/data_request?id=lu_action&output_format=xml&DeviceNum=14&serviceId=urn:upnp-org:serviceId:SwitchPower1&action=disarm

https://fwd2.mios.com/xxx/xxx/xxx/data_request?id=lu_action&output_format=xml&DeviceNum=14&serviceId=urn:upnp-org:serviceId:SwitchPower1&action=setTarget

Can anyone help me ?

thanks

Here is how I do it locally (arming):

http://10.0.1.71:3480/data_request?id=action&output_format=xml&DeviceNum=32&serviceId=urn:micasaverde-com:serviceId:SecuritySensor1&action=SetArmed&newArmedValue=1

You need to use the service id “urn:micasaverde-com:serviceId:SecuritySensor1” with the action “SetArmed” and value “newArmedValue”

thank you so much