Post on 01-Aug-2020
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VPN
Excel,Word
VPN
VPN
VPN
VPN
Userpass
IT
IT
IT
ICDL
VPN
WANLeased Line
ISDN
OC3Optical Carrier-3
WAN
WAN
VPN)Virtual PrivateNetwork
VPN
Leased
VPN
VPN
Remote-Access
VPDN)Virtual private dial-up network
User-To-Lan
ESP)Enterprise service provider
ESPVPNNAS)Network access
server
NAS
Site-to-Site
VPN
VPN
VPN
VPN
WAN
VPN
LAN
LAN
Leased
LAN
VPN
VPN
VPN
VPN
LANVPN
VPN
VPN
VPN
Secret
A
CBD
PGP)PrettyGood
Privacy
IPSecIPsec)Internet protocol securityprotocol
Tunnel TransporttunelPayload
transportpayload
AAAAAA : Authentication
Authorization,AccountingVPN
AAA
Authentication
Authorization
Accounting
VPN
VPN
VPNPIX
VPNDial-up
NASVPN
VPN
VPN
VPN
VPN
VPN
PIXPIX(Private Internet eXchange
NATProxyVPN
Tunneling
VPN
Tunneling
IPSec,L2F,PPTP,L2TP,GRE
IPX,IP,NetBeui
Tunneling
NetBeui
IP
IP
IP
VPNGRE)generic routing
encapsulation
IP
IPSec
tunnelIPSec
VPN
TunnelIPSec
VPNTunnelingPPP
PPPIP
PPP
VPN
L2F)Layer 2 Forwarding
PPP
PPTP)Point-to-Point Tunneling Protocol
PPP
L2TP)Layer 2 Tunneling Protocol
PPTPL2F
L2TPIPSec
NAS
Tunneling
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