diff --git a/daemon/face/ethernet.cpp b/daemon/face/ethernet.cpp
new file mode 100644
index 0000000..af11a3a
--- /dev/null
+++ b/daemon/face/ethernet.cpp
@@ -0,0 +1,52 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (C) 2014 Named Data Networking Project
+ * See COPYING for copyright and distribution information.
+ */
+
+#include "ethernet.hpp"
+
+#include <stdio.h>
+
+namespace nfd {
+namespace ethernet {
+
+std::string
+Address::toString(char sep) const
+{
+  char s[18]; // 12 digits + 5 separators + null terminator
+  ::snprintf(s, sizeof(s), "%02x%c%02x%c%02x%c%02x%c%02x%c%02x",
+             elems[0], sep, elems[1], sep, elems[2], sep,
+             elems[3], sep, elems[4], sep, elems[5]);
+  return std::string(s);
+}
+
+Address
+Address::fromString(const std::string& str)
+{
+  Address a;
+  int n, ret;
+
+  // colon-separated
+  ret = ::sscanf(str.c_str(), "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx%n",
+                 &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &n);
+  if (ret >= 6 && str.c_str()[n] == '\0')
+    return a;
+
+  // dash-separated
+  ret = ::sscanf(str.c_str(), "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx%n",
+                 &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &n);
+  if (ret >= 6 && str.c_str()[n] == '\0')
+    return a;
+
+  return Address();
+}
+
+std::ostream&
+operator<<(std::ostream& o, const Address& a)
+{
+  return o << a.toString();
+}
+
+} // namespace ethernet
+} // namespace nfd