If you are here, it's that you already got a working Shinken. If it's not ok, look at the Installation forum first

The discovery module allow you to discover your network and others elements and generate your configuration.

You should look at the discovery wiki page BEFORE posting here. It's available HERE for a quick tutorial, and HERE for a advanced one with customs rules.

If you follow it and you got some troubles, then you can post here, we will be glad to help you ;D