Some services like routers can be created from the "Advanced Networking & Security" menu or from the "Networking" menu.
Any reasons why these two exist ?
Any recommandation for using of them ?
To quote daphnissov
"2.4 introduced a new policy-based API which not all integrated solutions support at this time. Items under the "Advanced" heading use the APIs prior to 2.4 while everything else uses the new ones. That should even out in the future."
Here is an interesting blog about both interfaces: