Summary: Ref T5833. An interface is an IP (maybe v4, maybe v6) and port on a specified network (public internet, VPN, NAT block, etc).
Test Plan: See screenshots.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5833
Differential Revision: https://secure.phabricator.com/D10718