1 files changed, 3 insertions, 0 deletions

diff --git a/src/transport/gnunet-nat-server-windows.c b/src/transport/gnunet-nat-server-windows.c
index 4c613c0c5..7319f393f 100644
--- a/src/transport/gnunet-nat-server-windows.c
+++ b/src/transport/gnunet-nat-server-windows.c
@@ -57,6 +57,9 @@
 typedef unsigned int uid_t;
 typedef SOCKET Socket;
 typedef unsigned short ushort;
+#define IPDEFTTL 64
+#define ICMP_ECHO 8
+#define ICMP_TIME_EXCEEDED      11      /* Time Exceeded
 
 /**
  * Must match IP given in the client.