changes

I2PTunnel.cpp

@@ -569,7 +569,7 @@ namespace client
     LogPrint(eLogDebug, "UDPSesssion: HandleRecveived");
     if(!ecode) {
       LogPrint(eLogDebug, "UDPSession: forward ", len, "B from ", FromEndpoint);
-      auto dgram = m_Destination->GetDatagramDestination();
+      auto dgram = m_Destination.get()->GetDatagramDestination();
       if(dgram) {
         LastActivity = i2p::util::GetMillisecondsSinceEpoch();
         dgram->SendDatagramTo(m_Buffer, len, Identity, 0, 0);

I2PTunnel.h

@@ -136,7 +136,7 @@ namespace client
   const uint64_t I2P_UDP_SESSION_TIMEOUT = 1000 * 60 * 2;
 
   /** max size for i2p udp */
-  const size_t I2P_UDP_MAX_MTU = i2p::datagram::MAX_DATAGRAM_SIZE;
+  const size_t I2P_UDP_MAX_MTU = 4000;
   
   struct UDPSession
   {