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A comment on IPv6 Is Hard. Parent comment

Re:IPv6 Is Hard by yjftsjthsd-h on Sunday February 16, 2025 @02:02PM (#43070618)
Does a VPN prevent inbound traffic on other IPs? If I put my laptop on a VPN, I can still SSH to it on its RFC 1918 address.
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Re:IPv6 Is Hard by throwaway173738 on Sunday February 16, 2025 @11:25PM (#43075131)
A VPN can’t prevent inbound traffic but if the VPN alters the routing table it can prevent the return leg from working. This probably isn’t enough to prevent compromise.
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Re:IPv6 Is Hard by icedchai on Monday February 17, 2025 @10:16AM (#43079814)
It depends on the VPN and its policies. Some deny all local traffic when active, routing everything through the VPN, and only leave a IPv4 /32 route for the default gateway. Some are more permissive.
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