check before bind to 127.x.x.x

I2PTunnel.cpp

@@ -54,6 +54,10 @@ namespace client
 #ifdef __linux__ 			
 			// bind to 127.x.x.x address 
 			// where x.x.x are first three bytes from ident
+
+			if (m_RemoteEndpoint.address ().is_v4 () &&
+				m_RemoteEndpoint.address ().to_v4 ().to_bytes ()[0] == 127)
+			{
 				m_Socket->open (boost::asio::ip::tcp::v4 ());
 				boost::asio::ip::address_v4::bytes_type bytes;
 				const uint8_t * ident = m_Stream->GetRemoteIdentity ()->GetIdentHash ();
@@ -61,6 +65,7 @@ namespace client
 				memcpy (bytes.data ()+1, ident, 3);
 				boost::asio::ip::address ourIP = boost::asio::ip::address_v4 (bytes);
 				m_Socket->bind (boost::asio::ip::tcp::endpoint (ourIP, 0));
+			}
 #endif
 			m_Socket->async_connect (m_RemoteEndpoint, std::bind (&I2PTunnelConnection::HandleConnect,
 				shared_from_this (), std::placeholders::_1));