For privacy reasons Google doesn’t just offer up the IP addresses of your traffic, but there are ways to get it. I have set up a filter in my Analytics account to accomplish this.

Here is an article that helped me figure this out.

http://www.lunametrics.com/blog/2015/12/10/basic-google-analytics-filters/#Include%20Internal%20IP

Here is the page that helped me determine the regular expression needed to include the IP address information.

http://www.regular-expressions.info/ip.html

Let us know if this helps you….