diff --git a/SSU.cpp b/SSU.cpp
index 9dc05608..8d53fcb4 100644
--- a/SSU.cpp
+++ b/SSU.cpp
@@ -44,8 +44,8 @@ namespace transport
 	void SSUServer::OpenSocket ()
 	{
 		m_Socket.open (boost::asio::ip::udp::v4());
-		m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (65535));
-		m_Socket.set_option (boost::asio::socket_base::send_buffer_size (65535));
+		m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (SSU_SOCKET_RECEIVE_BUFFER_SIZE)); 
+		m_Socket.set_option (boost::asio::socket_base::send_buffer_size (SSU_SOCKET_SEND_BUFFER_SIZE));
 		m_Socket.bind (m_Endpoint);
 	}
 		
@@ -53,8 +53,8 @@ namespace transport
 	{
 		m_SocketV6.open (boost::asio::ip::udp::v6());
 		m_SocketV6.set_option (boost::asio::ip::v6_only (true));
-		m_SocketV6.set_option (boost::asio::socket_base::receive_buffer_size (65535));
-		m_SocketV6.set_option (boost::asio::socket_base::send_buffer_size (65535));
+		m_SocketV6.set_option (boost::asio::socket_base::receive_buffer_size (SSU_SOCKET_RECEIVE_BUFFER_SIZE));
+		m_SocketV6.set_option (boost::asio::socket_base::send_buffer_size (SSU_SOCKET_SEND_BUFFER_SIZE));
 		m_SocketV6.bind (m_EndpointV6);
 	}	
 		
diff --git a/SSU.h b/SSU.h
index 848f82a0..44dab63b 100644
--- a/SSU.h
+++ b/SSU.h
@@ -25,6 +25,8 @@ namespace transport
 	const int SSU_TO_INTRODUCER_SESSION_DURATION = 3600; // 1 hour
 	const int SSU_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds
 	const size_t SSU_MAX_NUM_INTRODUCERS = 3;
+	const size_t SSU_SOCKET_RECEIVE_BUFFER_SIZE = 0x1FFFF; // 128K
+	const size_t SSU_SOCKET_SEND_BUFFER_SIZE = 0xFFFF; // 64K
 
 	struct SSUPacket
 	{