diff --git a/types.hpp b/types.hpp
index 28b34d9..ca35421 100644
--- a/types.hpp
+++ b/types.hpp
@@ -1,9 +1,12 @@
 #pragma once
 
+#include <ifaddrs.h>
+
 #include <list>
 #include <string>
 #include <vector>
 #include <map>
+#include <memory>
 
 namespace phosphor
 {
@@ -18,6 +21,19 @@
     uint16_t prefix;
 };
 
+using Addr_t = ifaddrs*;
+
+struct AddrDeleter
+{
+    void operator()(Addr_t ptr) const
+    {
+        freeifaddrs(ptr);
+    }
+};
+
+using AddrPtr = std::unique_ptr<ifaddrs, AddrDeleter>;
+
+
 using AddrList = std::list<AddrInfo>;
 using IntfAddrMap = std::map<IntfName, AddrList>;