This is pretty much an exact clone of the IP Neighbor module by Micah Hoffman (WebBreacher) - sometimes SameIP.org has better results.
Have you had a chance to review the notes?
Please see inline comments.
Updated in commit https://bitbucket.org/bcoles/recon-ng/commits/b8d81adb1cae00ee900a4cbe51b058be88825389
Can you update the pull request so I can merge the updated version with the repo? Thanks.
Do you still want this merged? If so, please update the pull request. Thanks.
The pull request has been updated with the new commit.