Autologon for Windows users

codeplex
sharepoint2013

#1
Would it be possible to extend the FBA so that e.g. users coming from a pc with an internal IP address are automatically authenticated using Windows authentication without selecting it from the combo box?

If yes what would be the right place in the FBA to create this extension?

Regards

#2
Actually there's something already built:

https://spautomaticsignin.codeplex.com/

It's for SharePoint 2010 though, so you'll have to migrate it to SharePoint 2013 - but that shouldn't be too difficult.