The　deployment　of　the　IPv6　network　becomes　to　be　realized　as　the　necessity　of　the　IPv6　network　is　enlarged　due　to　the　limit　of　the　IPv4　network.　However,　the　security　policy　about　the　IPv6　network　is　not　mature　and　it　becomes　an　obstacle　in　the　IPv6　network　deployment.　Attackers　can　detour　the　access　control　of　packet　filtering　system,　unless　packet　filtering　system　can　decrypt　IPSec　packet.　This　paper　introduces　the　implementation　of　Distributed　Firewall　System　(DFS)　that　can　be　applicable　to　the　IPv6　network　and　has　capabilities　of　processing　encrypted　IPSec　packet.　The　prototype　introduced　in　this　paper　has　been　implemented　in　order　to　be　applied　to　the　IPv6　network　preferentially.　Although　it　has　a　limit　to　forward　performance,　the　prototype　can　give　the　basic　concepts　toward　the　IPv6-based　DFS　equipment.