}
private void addHeaders(Message msg) {
UdpHeader udp_hdr=new UdpHeader("DemoChannel");
msg.putHeader("UDP", udp_hdr);
TpHeader tp_hdr=new TpHeader("DemoChannel2");
msg.putHeader("TP", tp_hdr);
PingHeader ping_hdr=new PingHeader(PingHeader.GET_MBRS_REQ, null);
msg.putHeader("PING", ping_hdr);
NakAckHeader nak_hdr=new NakAckHeader(NakAckHeader.XMIT_REQ, 100, 104);
msg.putHeader("NAKACK", nak_hdr);