I have 2 sites and each site use Linksys BEFVP41 (VPN router) to connect to internet so that these 2 sites can have VPN tunnel and each site can access to another site using internal IP. I would like to block 1 site ( i.e. site A ) computers to access to internet website ( all services of internet such as FTP, webpage, ICQ, etc). meanwhile, I would like site A computers to connect to the email server in another site B, would somebody please give me suggestions on how to implement the situation? Thanks.