In　Intrusion　Detection　Systems　(IDS),　many　intelligent　information　processing　methods,　data　mining　technology　and　so　on　have　been　applied　to　improve　detection　accuracy　for　IPv4　network.　IPv6　will　inevitably　take　the　place　of　IPv4　as　the　next　generation　of　the　Internet　Protocol.　Considering　the　problem　of　the　urgent　requirement　of　IDS　for　IPv6　networks,　we　present　a　novel　intrusion　detection　model,　and　successfully　applied　it　into　an　IPv6　experimental　network　in　our　lab.　Lots　of　experiment　indicated　that　this　model　can　work　well　for　intrusion　detection　for　IPv6　network.　©　2009　Springer　Berlin　Heidelberg.