The GTA family of Internet security firewall appliances includes the GB-2000 family designed for SME offices GB-2000X, GB-2000e and GB-2000 along with our RoBoX family which is perfect for remote office/branch office implementations. RoBoX firewalls include the GB-800e, GB-800, GB-250e and GB-250. All GTA firewalls includes our advanced firewall features - policy based NAT, virtual hosting via IP Aliasing, and LDAP support - at no extra charge. Threat management features include DoS and Intrusion detection, basic content filtering and advanced email gateway features