>The affected systems are ones that I had told others were likely insecure (by virtue of being closed source), but no one listened to me. If you care about network security, then you should use a properly configured software firewall/router running Linux or *BSD. This Cisco/Juniper/etcetera equipment is closed source, hard to scrutinize and almost certainly has horrible flaws that would never be allowed into a serious OSS project.

You went wildly off the rails here; the OSS vs closed source security argument is foolish. If you think 'many eyes, shallow bugs' still has validity in 2016, you're not up to speed.