diff --git a/af.c b/af.c
new file mode 100644
index 0000000..76d6178
--- /dev/null
+++ b/af.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 1998-2006 The TCPDUMP project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code
+ * distributions retain the above copyright notice and this paragraph
+ * in its entirety, and (2) distributions including binary code include
+ * the above copyright notice and this paragraph in its entirety in
+ * the documentation or other materials provided with the distribution.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
+ * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
+ * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE.
+ *
+ * Original code by Hannes Gredler (hannes@juniper.net)
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/af.c,v 1.3.2.1 2007/02/26 13:33:17 hannes Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+#include "interface.h"
+#include "af.h"
+
+struct tok af_values[] = {
+    { 0,                      "Reserved"},
+    { AFNUM_INET,             "IPv4"},
+    { AFNUM_INET6,            "IPv6"},
+    { AFNUM_NSAP,             "NSAP"},
+    { AFNUM_HDLC,             "HDLC"},
+    { AFNUM_BBN1822,          "BBN 1822"},
+    { AFNUM_802,              "802"},
+    { AFNUM_E163,             "E.163"},
+    { AFNUM_E164,             "E.164"},
+    { AFNUM_F69,              "F.69"},
+    { AFNUM_X121,             "X.121"},
+    { AFNUM_IPX,              "Novell IPX"},
+    { AFNUM_ATALK,            "Appletalk"},
+    { AFNUM_DECNET,           "Decnet IV"},
+    { AFNUM_BANYAN,           "Banyan Vines"},
+    { AFNUM_E164NSAP,         "E.164 with NSAP subaddress"},
+    { AFNUM_L2VPN,            "Layer-2 VPN"},
+    { AFNUM_VPLS,             "VPLS"},
+    { 0, NULL},
+};
+
+struct tok bsd_af_values[] = {
+    { BSD_AFNUM_INET, "IPv4" },
+    { BSD_AFNUM_NS, "NS" },
+    { BSD_AFNUM_ISO, "ISO" },
+    { BSD_AFNUM_APPLETALK, "Appletalk" },
+    { BSD_AFNUM_IPX, "IPX" },
+    { BSD_AFNUM_INET6_BSD, "IPv6" },
+    { BSD_AFNUM_INET6_FREEBSD, "IPv6" },
+    { BSD_AFNUM_INET6_DARWIN, "IPv6" },
+    { 0, NULL}
+};