--- src/osdep/freebsd.c	2013-12-18 14:02:41.000000000 -0800
+++ src/osdep/freebsd.c	2013-12-19 02:04:28.000000000 -0800
@@ -42,6 +42,7 @@
 
 #include "osdep.h"
 
+
 struct priv_fbsd {
 	/* iface */
 	int				pf_fd;
@@ -522,6 +523,39 @@
 	return ioctl(priv->pf_s, SIOCSIFLLADDR, ifr);
 }
 
+static int fbsd_set_mtu(struct wif *wi, int mtu)
+{
+	struct priv_fbsd *priv = wi_priv(wi);
+	struct ifreq *ifr = &priv->pf_ifr;
+
+	memset( ifr, 0, sizeof( struct ifreq ) );
+
+	strncpy( ifr->ifr_name, wi_get_ifname(wi), sizeof( ifr->ifr_name ) );
+	ifr->ifr_mtu = mtu;
+
+	if( ioctl( priv->pf_s, SIOCSIFMTU, ifr ) < 0 )
+		return( -1 );
+
+    return 0;
+}
+
+static int fbsd_get_mtu(struct wif *wi)
+{
+	struct priv_fbsd *priv = wi_priv(wi);
+	struct ifreq ifr;
+
+	memset( &ifr, 0, sizeof( struct ifreq ) );
+
+	ifr.ifr_addr.sa_family = AF_INET;
+
+	strncpy( ifr.ifr_name, wi_get_ifname(wi), sizeof( ifr.ifr_name ) );
+
+	if( ioctl( priv->pf_s, SIOCGIFMTU, (caddr_t)&ifr ) < 0 )
+		return( -1 );
+
+	return ifr.ifr_mtu;
+}
+
 static struct wif *fbsd_open(char *iface)
 {
 	struct wif *wi;
@@ -542,7 +576,9 @@
 	wi->wi_set_mac		= fbsd_set_mac;
 	wi->wi_get_rate		= fbsd_get_rate;
 	wi->wi_set_rate		= fbsd_set_rate;
-        wi->wi_get_monitor      = fbsd_get_monitor;
+	wi->wi_get_monitor      = fbsd_get_monitor;
+	wi->wi_get_mtu		= fbsd_get_mtu;
+	wi->wi_set_mtu		= fbsd_set_mtu;
 
 	/* setup iface */
 	fd = do_fbsd_open(wi, iface);