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How are they using class E? I looked into enabling that for virtual networks in my app ( www.zerotier.com ) and quickly discovered that Microsoft Windows has h
by api 12y ago
How are they using class E?
I looked into enabling that for virtual networks in my app ( www.zerotier.com ) and quickly discovered that Microsoft Windows has hard coded these IPs as unusable. On a Windows box the IP stack will absolutely refuse to talk to the 240 block. I spent a few weeks looking for a workaround and could not find one, but I did talk to someone who used to work in MS and he confirmed to me that it was a hard-coded prohibition.
- eastdakota 12y agoThe IPs aren't being used for actually traffic routing. They're just included in the HTTP header so the web application can have something to use in any session, abuse, anti-spam, etc functions. You are correct that routing across Class E is practically impossible due to hard rules in place in Microsoft Windows and elsewhere.
- api 12y agoIn my research Windows is the only culprit in the OS space. There might be router firmwares too but I'm not sure. The entire Windows networking stack from top to bottom is a tangled mess of pain.