diff --git a/ipv4.h b/ipv4.h
new file mode 100644
index 0000000..eef3f0c
--- /dev/null
+++ b/ipv4.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2011 Daniel Drown
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * ipv4.h - takes an ipv4 packet and hands it off to the proper translate function
+ */
+#ifndef __IPV4_H__
+#define __IPV4_H__
+
+void ip_packet(int fd, const char *packet, size_t len);
+
+#endif /* __IPV4_H__ */