diff --git a/.gitignore b/.gitignore
index ea69607..9c8929f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,10 @@ Cargo.lock
 
 # keys
 /keys/
+
+# Vim temp files
+.*.swp
+.*.swo
+
+# Autogenerated files
+/gen/
diff --git a/gen_ids.sh b/gen_ids.sh
new file mode 100755
index 0000000..cd26ea5
--- /dev/null
+++ b/gen_ids.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+#echo "#[macro_use]";
+#echo "extern crate num_derive;";
+
+#echo "";
+
+echo "// Autogenerated file, do not edit!"
+
+echo "";
+
+echo "#[repr(u16)]";
+echo "#[derive(FromPrimitive, ToPrimitive)]";
+echo "#[derive(Debug, PartialEq, Eq, Clone, Hash)]";
+
+echo "pub enum PacketId {";
+
+for f in protobuf/*; do
+  CMD_ID=`cat $f | grep CMD_ID | cut -d'=' -f2 | tr -d ' ;\015'`;
+
+  if [ "x${CMD_ID}" != "x" ]; then 
+    NAME=`echo $f | cut -d'/' -f2 | cut -d'.' -f1`;
+    echo "    ${NAME} = ${CMD_ID},"
+  fi
+done
+
+echo "}";