ÒÇÑÔ ßÇÑ ÂãæÒí - samakhoy.ac.ir · NetworkVPN)Virtual Private VPN Leased VPN VPN...

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Transcript of ÒÇÑÔ ßÇÑ ÂãæÒí - samakhoy.ac.ir · NetworkVPN)Virtual Private VPN Leased VPN VPN...

Page 1: ÒÇÑÔ ßÇÑ ÂãæÒí - samakhoy.ac.ir · NetworkVPN)Virtual Private VPN Leased VPN VPN Remote-Access VPDN)Virtual private dial-up network User-To-Lan ESP)Enterprise service
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A

A

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SAc?

#"V

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VPN

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Excel,Word

VPN

VPN

VPN

VPN

Userpass

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IT

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IT

IT

ICDL

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VPN

WANLeased Line

ISDN

OC3Optical Carrier-3

WAN

WAN

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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

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Site-to-Site

VPN

VPN

VPN

VPN

WAN

VPN

LAN

Page 25: ÒÇÑÔ ßÇÑ ÂãæÒí - samakhoy.ac.ir · NetworkVPN)Virtual Private VPN Leased VPN VPN Remote-Access VPDN)Virtual private dial-up network User-To-Lan ESP)Enterprise service

LAN

Leased

LAN

VPN

VPN

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VPN

VPN

LANVPN

VPN

VPN

VPN

Page 27: ÒÇÑÔ ßÇÑ ÂãæÒí - samakhoy.ac.ir · NetworkVPN)Virtual Private VPN Leased VPN VPN Remote-Access VPDN)Virtual private dial-up network User-To-Lan ESP)Enterprise service

Secret

A

CBD

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PGP)PrettyGood

Privacy

IPSecIPsec)Internet protocol securityprotocol

Tunnel TransporttunelPayload

transportpayload

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AAAAAA : Authentication

Authorization,AccountingVPN

AAA

Authentication

Authorization

Accounting

VPN

VPN

VPNPIX

VPNDial-up

NASVPN

VPN

VPN

VPN

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VPN

VPN

PIXPIX(Private Internet eXchange

NATProxyVPN

Tunneling

VPN

Tunneling

IPSec,L2F,PPTP,L2TP,GRE

IPX,IP,NetBeui

Tunneling

NetBeui

IP

IP

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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

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L2TP)Layer 2 Tunneling Protocol

PPTPL2F

L2TPIPSec

NAS

Tunneling

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