final TCPHeader replyHdr =
new TCPHeader(hdr.getDstPort(), hdr.getSrcPort(), 0, 0, hdr.getSequenceNr() + 1, 0,
0);
replyHdr.setFlags(TCPF_ACK | TCPF_RST);
final IPv4Header replyIpHdr = new IPv4Header(ipHdr);
replyIpHdr.swapAddresses();
send(replyIpHdr, replyHdr, new SocketBuffer());
}
/**
* Create a binding for a local address