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authorAlyssa Ross <hi@alyssa.is>2022-05-31 09:59:33 +0000
committerAlyssa Ross <hi@alyssa.is>2022-05-31 09:59:57 +0000
commit9ff36293d1e428cd7bf03e8d4b03611b6d361c28 (patch)
tree1ab51a42b868c55b83f6ccdb80371b9888739dd9 /nixos/doc/manual/configuration/ipv6-config.section.md
parent1c4fcd0d4b0541e674ee56ace1053e23e562cc80 (diff)
parentddc3c396a51918043bb0faa6f676abd9562be62c (diff)
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+# IPv6 Configuration {#sec-ipv6}
+
+IPv6 is enabled by default. Stateless address autoconfiguration is used
+to automatically assign IPv6 addresses to all interfaces, and Privacy
+Extensions (RFC 4946) are enabled by default. You can adjust the default
+for this by setting [](#opt-networking.tempAddresses). This option
+may be overridden on a per-interface basis by
+[](#opt-networking.interfaces._name_.tempAddress). You can disable
+IPv6 support globally by setting:
+
+```nix
+networking.enableIPv6 = false;
+```
+
+You can disable IPv6 on a single interface using a normal sysctl (in
+this example, we use interface `eth0`):
+
+```nix
+boot.kernel.sysctl."net.ipv6.conf.eth0.disable_ipv6" = true;
+```
+
+As with IPv4 networking interfaces are automatically configured via
+DHCPv6. You can configure an interface manually:
+
+```nix
+networking.interfaces.eth0.ipv6.addresses = [ {
+  address = "fe00:aa:bb:cc::2";
+  prefixLength = 64;
+} ];
+```
+
+For configuring a gateway, optionally with explicitly specified
+interface:
+
+```nix
+networking.defaultGateway6 = {
+  address = "fe00::1";
+  interface = "enp0s3";
+};
+```
+
+See [](#sec-ipv4) for similar examples and additional information.