I've recently moved to a new apartment complex, and the ISP is using RFC6598 addresses for clients on the wireless, and routing devices through a NAT for internet access.
This appears to be against the RFC, as it appears the intention was to use the address space for "Customer Premises Equipment"; not typical client devices (iPads, Laptops, etc.)
Additionally, the intention of the RFC seems to be to help ISPs continue to provide IPv4 access while deploying IPv6, and yet, the ISP is v4-only.
There's also some security concerns regarding the use of this address space, as many browsers will treat RFC1918 addresses with more security than it would with "Public Addresses", which I assume most browsers would treat 100.64.0.0/10 as.
So, I'm curious what /r/networking thinks about this; is this common practice? Is the ISP doing anything wrong here?
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