diff --git a/sys/net/sixlowpan/sixlowedge.c b/sys/net/sixlowpan/sixlowedge.c
index 26fe6753bc..d5fb252765 100644
--- a/sys/net/sixlowpan/sixlowedge.c
+++ b/sys/net/sixlowpan/sixlowedge.c
@@ -503,7 +503,30 @@ void multiplex_send_ipv6_over_uart(struct ipv6_hdr_t *packet) {
     serial_buf->type = BORDER_PACKET_L3_TYPE;
     serial_buf->ethertype = BORDER_ETHERTYPE_IPV6;
     memcpy(border_out_buf+sizeof (border_l3_header_t), packet, IPV6_HDR_LEN + packet->length);
-    writepacket(border_out_buf, sizeof (border_l3_header_t) + IPV6_HDR_LEN + packet->length);
+    
+    flowcontrol_send_over_tty(
+            (border_packet_t *) serial_buf,
+            sizeof (border_l3_header_t)
+        );
+}
+
+void multiplex_send_addr_over_uart(ipv6_addr_t *addr) {
+    border_addr_packet_t *serial_buf;
+    
+    serial_buf = (border_addr_packet_t *)border_out_buf;
+    serial_buf->reserved = 0;
+    serial_buf->type = BORDER_PACKET_CONF_TYPE;
+    serial_buf->conftype = BORDER_CONF_IPADDR;
+    memcpy(
+            &serial_buf->addr,
+            addr, 
+            sizeof (ipv6_addr_t)
+        );
+    
+    flowcontrol_send_over_tty(
+            (border_packet_t *) serial_buf,
+            sizeof (border_addr_packet_t)
+        );
 }
 
 void border_send_ipv6_over_lowpan(struct ipv6_hdr_t *packet, uint8_t aro_flag, uint8_t sixco_flag) {
diff --git a/sys/net/sixlowpan/sixlowedge.h b/sys/net/sixlowpan/sixlowedge.h
index fa9888a65f..99b8001a31 100644
--- a/sys/net/sixlowpan/sixlowedge.h
+++ b/sys/net/sixlowpan/sixlowedge.h
@@ -110,6 +110,7 @@ typedef struct flowcontrol_stat_t {
 
 uint8_t border_initialize(transceiver_type_t trans,ipv6_addr_t *border_router_addr);
 void multiplex_send_ipv6_over_uart(struct ipv6_hdr_t *packet);
+void multiplex_send_addr_over_uart(ipv6_addr_t *addr);
 void flowcontrol_send_over_uart(border_packet_t *packet, int len);
 void border_send_ipv6_over_lowpan(struct ipv6_hdr_t *packet, uint8_t aro_flag, uint8_t sixco_flag);
 void border_process_lowpan(void);
@@ -120,7 +121,4 @@ void slwin_init();
 
 abr_cache_t *get_border_router_info();
 
-lowpan_context_t *border_define_context(uint8_t cid, ipv6_addr_t *prefix, uint8_t prefix_len, uint16_t lifetime);
-lowpan_context_t *border_alloc_context(ipv6_addr_t *prefix, uint8_t prefix_len, uint16_t lifetime);
-
 #endif /* SIXLOWBORDER_H*/