diff --git a/base.nix b/base.nix
index 2a380fe..b151a70 100644
--- a/base.nix
+++ b/base.nix
@@ -4,5 +4,6 @@
   imports = [
     ./tools.nix
     ./localisation.nix
+    ./networking.nix
   ];
 }
diff --git a/networking.nix b/networking.nix
new file mode 100644
index 0000000..f8ebd8b
--- /dev/null
+++ b/networking.nix
@@ -0,0 +1,17 @@
+{ config, pkgs, ... }:
+
+{
+
+  # Utilisation d'adresse IPv6 temporaire
+  # https://blog.linitx.com/control-privacy-addressing-ipv6-linux/
+
+  boot.kernel.sysctl = {
+    "net.ipv6.conf.all.temp_prefered_lft" = 3600; # 1 heure
+    "net.ipv6.conf.all.temp_valid_lft" = 86400; # 1 jour
+    "net.ipv6.conf.all.use_tempaddr" = 2; # activé
+
+    "net.ipv6.conf.default.temp_prefered_lft" = 3600; # 1 heure
+    "net.ipv6.conf.default.temp_valid_lft" = 86400; # 1 jour
+    "net.ipv6.conf.default.use_tempaddr" = 2; # activé
+    };
+}