If it's a response of previously spoofed send SYN then it must've been SYN+ACK, and you can specify on your Firewall or Router to deny those SYN+ACK packets which have not been initialized from your Network.
Raw Diagram would be: SYN+ACK -> (check if your network requested it) -> (if yes) -> then -> ALLOW -> else (REJECT) Regards, --------- Muhammad Faisal Rauf Danka Chief Technology Officer Gem Internet Services (Pvt) Ltd. web: www.gem.net.pk Vice President Pakistan Computer Emergency Responce Team (PakCERT) web: www.pakcert.org Chief Security Analyst Applied Technology Research Center (ATRC) web: www.atrc.net.pk --- "NetWatch" <[EMAIL PROTECTED]> wrote: >>SNIP>> _____________________________________________________________ --------------------------- [ATTITUDEX.COM] http://www.attitudex.com/ --------------------------- _____________________________________________________________ Promote your group and strengthen ties to your members with [EMAIL PROTECTED] by Everyone.net http://www.everyone.net/?btn=tag