Configurazione router ADSL e firewall hardware

[balubeto]

CIAO

Ho un collegamento ADSL 7168/512 , un router ADSL ZyXEL Prestige 660H-61 (10.0.0.1) ed un firewall hardware ZyXEL ZyWALL 2 (192.168.1.1) in cui sono connessi i vari computer.

Quindi, il firewall hardware ed il router ADSL li ho configurati nel seguente modo:

http://img716.imageshack.us/img716/3944/firewallzywall2wan.th.jpg (http://img716.imageshack.us/i/firewallzywall2wan.jpg/)

http://img163.imageshack.us/img163/6536/firewallzywall2ipstatic.th.jpg (http://img163.imageshack.us/i/firewallzywall2ipstatic.jpg/)

http://img37.imageshack.us/img37/188/firewallzywall2threshol.th.jpg (http://img37.imageshack.us/i/firewallzywall2threshol.jpg/)

http://img41.imageshack.us/img41/714/routerprestige660h61lan.th.jpg (http://img41.imageshack.us/i/routerprestige660h61lan.jpg/)

http://img141.imageshack.us/img141/7574/routerprestige660h61def.th.jpg (http://img141.imageshack.us/i/routerprestige660h61def.jpg/)

http://img827.imageshack.us/img827/714/routerprestige660h61lan.th.jpg (http://img827.imageshack.us/i/routerprestige660h61lan.jpg/)

http://img820.imageshack.us/img820/714/routerprestige660h61lan.th.jpg (http://img820.imageshack.us/i/routerprestige660h61lan.jpg/)

http://img200.imageshack.us/img200/7060/routerprestige660h61wan.th.jpg (http://img200.imageshack.us/i/routerprestige660h61wan.jpg/)

http://img822.imageshack.us/img822/7060/routerprestige660h61wan.th.jpg (http://img822.imageshack.us/i/routerprestige660h61wan.jpg/)

http://img135.imageshack.us/img135/5219/routerprestige660h61thr.th.jpg (http://img135.imageshack.us/i/routerprestige660h61thr.jpg/)

http://img838.imageshack.us/img838/374/routerprestige660h61sua.th.jpg (http://img838.imageshack.us/i/routerprestige660h61sua.jpg/)


Ora, c'e` qualcosa che non funziona poiche` ricevo molti syn flood TCP da parte del router ADSL mentre uso Internet. Cosa sbaglio?

GRAZIE

CIAO