diff --git a/cluster/prod/site/orion.nix b/cluster/prod/site/orion.nix
index 5a521d0..acc905a 100644
--- a/cluster/prod/site/orion.nix
+++ b/cluster/prod/site/orion.nix
@@ -3,6 +3,7 @@
 {
   deuxfleurs.site_name = "orion";
   deuxfleurs.lan_default_gateway = "192.168.1.254";
+  deuxfleurs.ipv6_default_gateway = "2a01:e0a:28f:5e60::1";
   deuxfleurs.lan_ip_prefix_length = 24;
   deuxfleurs.ipv6_prefix_length = 64;
   deuxfleurs.nameservers = [ "192.168.1.254" ];
diff --git a/nix/deuxfleurs.nix b/nix/deuxfleurs.nix
index 8be16af..7c2919c 100644
--- a/nix/deuxfleurs.nix
+++ b/nix/deuxfleurs.nix
@@ -79,7 +79,11 @@ in
 
     # Parameters that generally vary between sites
     lan_default_gateway = mkOption {
-      description = "IP address of the default route on the locak network interface";
+      description = "IPv4 address of the default route on the local network interface";
+      type = types.str;
+    };
+    ipv6_default_gateway = mkOption {
+      description = "IPv6 address of the default IPv6 gateway for the targeted net interface";
       type = types.str;
     };
     site_name = mkOption {
@@ -151,6 +155,11 @@ in
       interface = cfg.network_interface;
     };
 
+    networking.defaultGateway6 = {
+      address = cfg.ipv6_default_gateway;
+      interface = cfg.network_interface;
+    };
+
     networking.nameservers = [
       cfg.lan_ip
     ] ++ cfg.nameservers;
diff --git a/ssh_known_hosts b/ssh_known_hosts
index cc907be..2104ac9 100644
--- a/ssh_known_hosts
+++ b/ssh_known_hosts
@@ -6,3 +6,6 @@
 2a06:a004:3024::21 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPXTUrXRFhudJBESCqjHCOttzqYPyIzpPOMkI8+SwLRx
 2a06:a004:3024::22 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMf/ioVSSb19Slu+HZLgKt4f1/XsL+K9uMxazSWb/+nQ
 192.168.1.23 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE2QRbcclYmteMRLIaxOBBBQe/OGF1T+PtSAR249r4VM
+doradille.machine.deuxfleurs.fr ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKzVJB1XYBC/rMxb7UfAoCzKH/l6oE4NKsSErCv2wV94
+dahlia.machine.deuxfleurs.fr ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIQsdIYUn4njMRAuT0/8GzqGn6zGn9014BAkT7VSVf2H
+diplotaxis.machine.deuxfleurs.fr ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFcVtfOj0ti6eYsFSq2gbBGhaf8E7p/QiO3/MVX1D32T