基号CIS和BS混合民银式伪志迷信躇

452CISB/S3a3325)CISB/SVPNVPNCISB/SVPN;InterneIntranet)WebCISB/S1(2)(3)(4)2'CISB/S2.1B/SWebB/SCISB/SCIS4531CISB/S71B/SXMLCISB/SJ2EEPresentation)HπPWeb1CISB/S2.2OA(2)OA:(3)(4)(5)(6)f3X.25DONVirtualPrivateNetworkVPN)Inter-netInter-net3.1VPNVPNVPNVPN454Tunne-ling)(EncryptionandDecryption)(KeyManagement)(AuthenIPIXPNETBEUI)PPPFPPTPTPIPVTPIPSecIPSec(IPSecurity)RFCIPVPNSKIPISAKM/OAKLEYSKIPDiιfie-HellmandISAKMP3.2VPN2VPNPSTNADSLInternetVPNInternet24CISB/SXMLICIT)[I]InterneIntranet2327(I):25-28[2]ieM]22[3][M]22.[4]m26(I):124-127.[5]DavidnClark.[M]2