Linux networking tip: if your box is on a fixed network, always set net.ipv6.conf.forwarding=1. "Forwarding" is a misnomer; it means "is not a dynamic host" and is needed to suppress ability for malicious peers on lan to reconfigure your interfaces & routing.
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Replying to @RichFelker
Isn't announcing additional non-default routes part of the whole idea of v6? Maybe I'm confusing something here.
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Replying to @arvidep
It's one feature you may or may not want, but "unauthenticated peer can reconfigure your network interfaces" is generally a security misdesign, and it's certainly not "the whole idea of v6".
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Replying to @RichFelker @arvidep
If you want a tweet-sized version of "the whole idea of IPv6", it's just "4 billion addresses is nowhere near enough". Everything beyond that is basically "hey while we're at it we could add this feature too..."
2:27 PM - 6 Apr 2018
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