diff --git a/net/ping.c b/net/ping.c
index 0e33660..075df36 100644
--- a/net/ping.c
+++ b/net/ping.c
@@ -90,6 +90,9 @@
 			net_set_state(NETLOOP_SUCCESS);
 		return;
 	case ICMP_ECHO_REQUEST:
+		if (net_ip.s_addr == 0)
+			return;
+
 		eth_hdr_size = net_update_ether(et, et->et_src, PROT_IP);
 
 		debug_cond(DEBUG_DEV_PKT,