diff --git a/networking.nix b/networking.nix
index f8ebd8b..8e10228 100644
--- a/networking.nix
+++ b/networking.nix
@@ -4,6 +4,7 @@
 
   # Utilisation d'adresse IPv6 temporaire
   # https://blog.linitx.com/control-privacy-addressing-ipv6-linux/
+  # http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/x1092.html
 
   boot.kernel.sysctl = {
     "net.ipv6.conf.all.temp_prefered_lft" = 3600; # 1 heure