Wednesday, April 11, 2018

Turning Off IPv6

Internet Protocol version 6 provides a major expansion in the number of Internet addresses from the familiar version 4 (e.g., in fact, this upgrade went from just over 4 billion to 340 undecillion IPv6 addresses (10 to the power of 38), which should last us just about forever.  But we suspected our home Windows PC was having connectivity problems due to using IPv6 (my guess is the router), so we turned off IPv6 in the Local Area Connection Properties, as shown below, which has seemed to resolve the issue.  That's no big deal for a home PC sitting behind a router/firewall, since your local IP address will be changed anyway as it traverses across the firewall to the Internet, a process called NAT (Network Address Translation).

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