Fantastic and flawless! 5 stars!!!

I have an online mathematics journal (mr.math.ca) with about 100 library subscribers from around the world. I rely on the IP Based Login plugin to handle the auto login for these institutions, each of whom has many IP ranges. With the recent update allowing the import of a csv file, it is easy for me to maintain a database of these IP ranges in Excel where it is simple to add and delete ranges or paste in large ranges. It is then a simple matter to save the excel file as a .csv and import it to WordPress. The plugin handles the rest.

I gladly will donate to keep this plugin in active development.

I could even see this being useful in a smaller situation of regular users who operate regularly from the same IP. It would save them logging in.