Index: src/network/network_udp.cpp
===================================================================
--- src/network/network_udp.cpp	(revision 11719)
+++ src/network/network_udp.cpp	(arbetskopia)
@@ -19,7 +19,6 @@
 #include "network_udp.h"
 #include "../variables.h"
 #include "../newgrf_config.h"
-#include "../core/endian_func.hpp"
 
 #include "core/udp.h"
 
@@ -334,14 +333,27 @@
 	/* packet begins with the protocol version (uint8)
 	 * then an uint16 which indicates how many
 	 * ip:port pairs are in this packet, after that
-	 * an uint32 (ip) and an uint16 (port) for each pair
+	 * an uint32 (ip, network byte order) and an uint16
+	 * (port, little-endian) for each pair
 	 */
 
 	ver = p->Recv_uint8();
 
 	if (ver == 1) {
 		for (i = p->Recv_uint16(); i != 0 ; i--) {
-			ip.s_addr = TO_LE32(p->Recv_uint32());
+			/* the ip adress is sent in the network byte order on
+			 * the wire, even though everything else is sent as
+			 * little-endian. To copy from the packet, storing
+			 * it in the same byte order in memory, we just copy
+			 * byte for byte. Using recv_uint32 would cause a
+			 * byte swap on a big-endian machine.
+			 */
+			uint8 *ptr = (uint8 *) &ip.s_addr;
+			ptr[0] = p->Recv_uint8();
+			ptr[1] = p->Recv_uint8();
+			ptr[2] = p->Recv_uint8();
+			ptr[3] = p->Recv_uint8();
+
 			port = p->Recv_uint16();
 
 			/* Somehow we reached the end of the packet */