std::string ipv4_address_;
};
-XBT_PRIVATE void ns3_initialize(const std::string& TcpProtocol);
XBT_PRIVATE void ns3_simulator(double max_seconds);
XBT_PRIVATE void ns3_add_direct_route(simgrid::kernel::routing::NetPoint* src, simgrid::kernel::routing::NetPoint* dst,
double bw, double lat, const std::string& link_name,