diff --git a/machine-confs/helium.nix b/machine-confs/helium.nix
index 9dfcd7e..18c14b0 100644
--- a/machine-confs/helium.nix
+++ b/machine-confs/helium.nix
@@ -2,6 +2,7 @@
 {
   networking = {
     hostName = "helium";
+    tempAddresses = "disabled"; # For IP-based filtering to work better
 
     wg-quick.interfaces = {
       wg0 = {
diff --git a/machine-confs/lithium.nix b/machine-confs/lithium.nix
index 3c095ae..4257108 100644
--- a/machine-confs/lithium.nix
+++ b/machine-confs/lithium.nix
@@ -2,6 +2,7 @@
 {
   networking = {
     hostName = "lithium";
+    tempAddresses = "disabled"; # For IP-based filtering to work better
 
     wg-quick.interfaces = {
       wg0 = {