diff --git a/litex/soc/software/libliteeth/udp.c b/litex/soc/software/libliteeth/udp.c
index 9fa071901..8c34f30bd 100644
--- a/litex/soc/software/libliteeth/udp.c
+++ b/litex/soc/software/libliteeth/udp.c
@@ -166,6 +166,18 @@ static void send_packet(void)
 static unsigned char my_mac[6];
 static unsigned int my_ip;
 
+void udp_set_ip(unsigned int ip)
+{
+	my_ip = ip;
+}
+
+void udp_set_mac(const unsigned char *macaddr)
+{
+	int i;
+	for(i=0;i<6;i++)
+    		my_mac[i] = macaddr[i];
+}
+
 /* ARP cache - one entry only */
 static unsigned char cached_mac[6];
 static unsigned int cached_ip;
@@ -420,9 +432,8 @@ void udp_start(const unsigned char *macaddr, unsigned int ip)
 	ethmac_sram_reader_ev_pending_write(ETHMAC_EV_SRAM_READER);
 	ethmac_sram_writer_ev_pending_write(ETHMAC_EV_SRAM_WRITER);
 
-	for(i=0;i<6;i++)
-		my_mac[i] = macaddr[i];
-	my_ip = ip;
+	udp_set_ip(ip);
+	udp_set_mac(macaddr);
 
 	cached_ip = 0;
 	for(i=0;i<6;i++)
diff --git a/litex/soc/software/libliteeth/udp.h b/litex/soc/software/libliteeth/udp.h
index 47e844b8a..5691acf0b 100644
--- a/litex/soc/software/libliteeth/udp.h
+++ b/litex/soc/software/libliteeth/udp.h
@@ -10,6 +10,8 @@
 
 typedef void (*udp_callback)(unsigned int src_ip, unsigned short src_port, unsigned short dst_port, void *data, unsigned int length);
 
+void udp_set_ip(unsigned int ip);
+void udp_set_mac(const unsigned char *macaddr);
 void udp_start(const unsigned char *macaddr, unsigned int ip);
 int udp_arp_resolve(unsigned int ip);
 void *udp_get_tx_buffer(void);