Detect WebApplication's url called by browser

Targets Web
1

I have a web application used from intranet and accessible at http://192.168.1.10. The same application can be reached also from internet at url http://xxxxx.com.

Is there a way in which the web app can detects wich is the url called by browser?

2

WebSession.Header(“Host”)

3

or check if the remote IP of the session is in the 192.168.1.x range.

EDIT: Change “remove” to “remote”