Как избавиться от DOS-атаки: RST Scan?

У меня есть маршрутизатор Netgear Wnr1000v2. Я установил свой NAT в безопасный режим (я не знаю, помогает ли это). Много раз, когда я вижу журнал моего маршрутизатора, я вижу много DoS-атак: RST Scan. Я думаю, что это происходит только тогда, когда я использую uTorrent или Tunngle. Всякий раз, когда меня атакуют такими DoS-атаками, мой интернет значительно замедляется, а затем полностью отключается.

Смотрите последние журналы:

[Internet disconnected] Sunday, July 01, 2012 15:52:27
[DoS Attack: RST Scan] from source: 222.232.111.93, port 37111, Sunday, July 01, 2012 15:51:35
[DoS Attack: RST Scan] from source: 122.162.82.230, port 14544, Sunday, July 01, 2012 15:51:01
[DoS Attack: RST Scan] from source: 122.162.82.230, port 14426, Sunday, July 01, 2012 15:50:12
[DoS Attack: RST Scan] from source: 122.162.82.230, port 14261, Sunday, July 01, 2012 15:49:47
[DoS Attack: RST Scan] from source: 88.88.236.33, port 14102, Sunday, July 01, 2012 15:49:01
[DoS Attack: RST Scan] from source: 222.232.111.93, port 36430, Sunday, July 01, 2012 15:46:59
[DoS Attack: RST Scan] from source: 222.232.111.93, port 36166, Sunday, July 01, 2012 15:45:07
[DoS Attack: RST Scan] from source: 177.40.143.78, port 40460, Sunday, July 01, 2012 15:43:52
[DoS Attack: RST Scan] from source: 177.40.143.78, port 40405, Sunday, July 01, 2012 15:43:16
[DoS Attack: ACK Scan] from source: 117.254.153.44, port 40523, Sunday, July 01, 2012 15:41:11
[DoS Attack: RST Scan] from source: 71.218.6.227, port 26307, Sunday, July 01, 2012 15:40:15
[DoS Attack: ACK Scan] from source: 117.254.153.44, port 40523, Sunday, July 01, 2012 15:38:49
[DoS Attack: RST Scan] from source: 71.218.6.227, port 25949, Sunday, July 01, 2012 15:38:34
[DoS Attack: ACK Scan] from source: 88.181.25.230, port 54096, Sunday, July 01, 2012 15:37:31

After continuous DoS attacks you can see that the Internet eventually disconnected. I then had to reboot the router to get it work again. This happens quite often - is there something I can do? The IP address doing DoS attacks always change, so I guess there is no use in blocking these IP addresses.

Even if I am equipped with the best antivirus, anti-malware or other software, I really want to avoid getting disconnected because of these DoS attacks.