Secure Communication HITACHI Inspire the Next Implementation of IPSec on Host Support of Local Network Security IPy4+ Nat NAT doesn' t have Certification Cipher Information No Certification Cipher capabilities in Local Net Host HLocal NetH NAT Security L Fire Internet GW a Management Interfaces DB IPV6 o IPSec is embedded in Layer 3 Protocol of Host Real-Time, Secure communication between hosts Host Fire Local net Internet Wall IG All Rights Reserved, Copyright 2002-2003, Hitachi LtdAll Rights Reserved, Copyright 2002-2003, Hitachi Ltd. 11 Secure Communication Local Net Internet DB Host NAT Security GW Fire Wall Management Interfaces IPv4 + NAT n Implementation of IPSec on Host n Support of Local Network Security l NAT doesn’t have Certification / Cipher Information No Certification / Cipher Capabilities in Local Net IPv6 Host Internet Fire Wall Local Net l IPSec is embedded in Layer 3 Protocol of Host Real-Time, Secure Communication between Hosts