diff --git a/arerules/lan_cors_scan.json b/arerules/lan_cors_scan.json
new file mode 100644
index 000000000..356f3940b
--- /dev/null
+++ b/arerules/lan_cors_scan.json
@@ -0,0 +1,26 @@
+{"name": "Get Internal IP (WebRTC)",
+  "author": "bcoles",
+  "browser": ["FF", "C"],
+  "browser_version": "ALL",
+  "os": "ALL",
+  "os_version": "ALL",
+  "modules": [
+    {"name": "get_internal_ip_webrtc",
+      "condition": null,
+      "code": null,
+      "options": {}
+    },
+    {"name": "cross_origin_scanner",
+      "condition": "status==1",
+      "code": "var s=get_internal_ip_webrtc_mod_output.split('.');var start = s[0]+'.'+s[1]+'.'+s[2]+'.1'; var end = s[0]+'.'+s[1]+'.'+s[2]+'.255'; var mod_input = start+'-'+end",
+      "options": {
+        "ipRange":"<<mod_input>>",
+        "ports":"80,8080",
+        "threads":"5"
+      }
+    }
+  ],
+  "execution_order": [0, 1],
+  "execution_delay": [0, 0],
+  "chain_mode": "nested-forward"
+}