diff --git a/src/base/system.c b/src/base/system.c
index 70a78d16f..827ee1fd3 100644
--- a/src/base/system.c
+++ b/src/base/system.c
@@ -1153,6 +1153,11 @@ NETSOCKET net_udp_create(NETADDR bindaddr)
 
 			/* set receive buffer size */
 			setsockopt(socket, SOL_SOCKET, SO_RCVBUF, (char*)&recvsize, sizeof(recvsize));
+
+			/* set DSCP/TOS */
+			int iptos = 0x10 /* IPTOS_LOWDELAY */;
+			//int iptos = 46; /* High Priority */
+			setsockopt(socket, IPPROTO_IP, IP_TOS, (char*)&iptos, sizeof(iptos));
 		}
 	}
 
@@ -1175,6 +1180,11 @@ NETSOCKET net_udp_create(NETADDR bindaddr)
 
 			/* set receive buffer size */
 			setsockopt(socket, SOL_SOCKET, SO_RCVBUF, (char*)&recvsize, sizeof(recvsize));
+
+			/* set DSCP/TOS */
+			int iptos = 0x10 /* IPTOS_LOWDELAY */;
+			//int iptos = 46; /* High Priority */
+			setsockopt(socket, IPPROTO_IP, IP_TOS, (char*)&iptos, sizeof(iptos));
 		}
 	}