What version of the Cisco PIX Firewall is required to use the VPN accelerator card? seenagape 9 years ago What version of the Cisco PIX Firewall is required to use the VPN accelerator card? A. version 5.3 or higher B. version 4.3 or higher C. version 6.3 or higher D. version 3.3 or higher E. version 2.3 or higher ← Previous question Next question →