diff --git a/rootfs_overlay/etc/unbound/custom.conf.d/a-records.conf b/rootfs_overlay/etc/unbound/custom.conf.d/a-records.conf
deleted file mode 100644
index b00b303..0000000
--- a/rootfs_overlay/etc/unbound/custom.conf.d/a-records.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-# server:
-# 	local-data: "somecomputer.local. A 192.168.1.1"
-# 	local-data-ptr: "192.168.1.1 somecomputer.local."
diff --git a/rootfs_overlay/etc/unbound/custom.conf.d/a-records.conf.example b/rootfs_overlay/etc/unbound/custom.conf.d/a-records.conf.example
new file mode 100644
index 0000000..9275ead
--- /dev/null
+++ b/rootfs_overlay/etc/unbound/custom.conf.d/a-records.conf.example
@@ -0,0 +1,3 @@
+server:
+    local-data: "somecomputer.local. A 192.168.1.1"
+    local-data-ptr: "192.168.1.1 somecomputer.local."
diff --git a/rootfs_overlay/etc/unbound/custom.conf.d/send-client-subnet.conf.example b/rootfs_overlay/etc/unbound/custom.conf.d/send-client-subnet.conf.example
new file mode 100644
index 0000000..af73323
--- /dev/null
+++ b/rootfs_overlay/etc/unbound/custom.conf.d/send-client-subnet.conf.example
@@ -0,0 +1,6 @@
+server:
+    # Enable ECS
+    module-config: "subnetcache validator iterator"
+    # Send client source address to each and every authority. TODO: Find an actual list of IPs of CDN's
+    send-client-subnet: 0.0.0.0/0
+    send-client-subnet: ::0/64