diff --git a/host_vars/10.1.1.193.yml b/host_vars/10.1.1.193.yml
index c6206b3..e8e601f 100644
--- a/host_vars/10.1.1.193.yml
+++ b/host_vars/10.1.1.193.yml
@@ -91,3 +91,7 @@
     spacewalk:
       mac_address: "A6:74:37:B9:54:EF"
       ip_address : "10.1.1.130"
+
+    er4:
+      mac_address: "18:e8:29:b3:c3:e7"
+      ip_address : "10.1.1.110"