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Untitled Document
Virtual Private Network (VPN) - ?????? 2
โดย MVT Info วันที่ 29/09/2548 10:55
 

?????????? ????????????????????????? ?????????????????????????????????????? Virtual Private Network ???? VPN ????????????????????  ??????????????????????????????????????????????? ?????????????????????????????????????????????? VPN ???????????????????????????????????????????????? ?????????????????????????????????????????????????? Application ??????????????????????????????  ??????????????????????? VPN  ????????-????????????????????????????  ????????????????????????? ????????????????????????????? Virtual Private Network ??????????????????????


????????????????? VPN

  • Openness: ????????? VPN ??????????????????????????????????????????? "?????????" ??????????????????????????? Internet Protocol (IP) ???????? ????????????????? VPN ?????????????????????????????????????
  • Ubiquity: ?????????? VPN ??????????????????????????????????? ???????????????????? VPN ?????????????????? Internet  ???????????????? Internet ???????????????????????????
  • Management Simplicity: ????????? VPN ???????????????????????????????????? ????????????????? Protocol ???????????????????? ??? IP ???????????????????????? ??????????????????????????????????? Internet ??? ?????????????????????????? VPN ???
  • Cost Saving: ????????? VPN ?????????????????????????????????????????????????????? ?????????????????????????????????????????? WAN ????????????????????? Dial-up ???????????????????????????
  • Scalability: ????????? VPN ????????????????????????????????????????? ???????????????????????????????? VPN ? ?????? ??????????????????????????? Internet ???  ?????????? ????????????????????????? Bandwidth ???????????????????? VPN ?????????????????????????
  • Security: ???????????????? ?????????????????? ???????????????????????????????????????? VPN ????????? ?????????????????????? ????????????????? VPN ?????????????????? Security ?????? ????????????????????????????????????????????????, ????? Authentication  ??????????????????????????????? (Data Encryption)


?????????????????? VPN

?????????????????? VPN ???? ????? ???????????????????????????????????????????? ??????????????????????????????????????????-?????????????????????????? 3 ?????? ???

1. Software-Based VPN:

  • ?????: ?????? Software-Based VPN ???????????????????????????????????????? ??????????????????????????????????????????????? VPN ??? ?????????????????????????????????????????????????????????????????????????????????????????????
  • ???????: ???????????????????????? Software-Based VPN ????????? ????????? Performance ?????????? ???????????????????? Tunneling ???????? Encryption ??????????????????????????????

2. Firewall-Based VPN: ??????????? Firewall-Based VPN ?????????????????????????????????????????????????????? VPN ????????? Firewall ?????????????

  • ?????: Firewall-Based VPN ???????????????????????????? Software-Based VPN ??????? ?????????????????????????????????????? ??????????????????????????? ???????????????????????????????????
  • ???????: ?????????? Firewall-Based VPN ??????????????? Software-Based VPN ???????????? Performance ??????????????????????? ???????????????????????????????? VPN ?????????????????????????????????? Software ????

3. Router-Based VPN:

  • ?????: ??????????????????????????????????????????????? VPN ????????? Router ????????????????? ??????????????????????????????????????? ??????????????????????????????? Software ??????????????????? Hardware ????????????????????????????????????????????????????????? VPN ???????? ????????????????? Tunneling, Encryption ???????????????????????? Firewall Service
  • ???????: ?????? Router-Based VPN ???????????????????????? Hardware ?????????????????????????????? VPN ???? ???????????????????? Performance ?????????? ??????????????????????????????????? Software ????????? Router ????????????????????????????????? Router ???????????????????


???????? Application ??????????????????? VPN ????????

?????????????? Application ????? ?????????????? VPN ???????????? ????????????????????? VPN ???????????????? Application ????? ??????????????? ?????????????????? 2-3 Application ??????

1. Remote Access VPN

Remote Access Application ?????????????????????????????????????????????????????? (Remote Worker), ???????????????????????????????? ???? ?????????????? ????????????????????????? (Work at Home) ????????????????????????????????????????????????????????????????????????????????????????? ???? ??????-??? E-mail ??????????????????????????????????? ????????????????????????????????? ?????????????????????????????????????????????????????? ?????????????? Remote Access Application ???? ????????????????????????????????????? WAN ?????????????????????????????????????????????????? ?????????????????????? Dial-in ?????? ???????????????????????????? Dial-in ??????????????????????????????? Remote Access ???????????????????????????????????????? ?????????????????????????????????????????????????? ???? ??????????? ?????????????? ?????????????????? ??????????????? Dial-in ????????????????????? ???????????????????????????????????? VPN ???????????????????? ???????????????????????????????????????? Internet ???? ISP ????????????????????????????????? ?????????? ??????????????? Remote Access ????????????? VPN ??????????????????????? ????????????????????? Remote Dial-in ????????????????????????????? Dial-in ?????????????? ?????


2. Site-to-Site Connectivity

Site-to-Site Connectivity Application ?????????????????????????? Remote Access Application ?????????????????? ????????????????????????????????????????????????????????????? ???? Remote User ???????????????????????????????????????????????????????????????????????? ???? ????????????????????????? ?????????????????? VPN ?????????????????????????????????? Site-to-Site Connectivity ????????????????????????????????????????????????????????? WAN ???? ???? Leased Line ???? Frame Relay ??????? ????????????????????????????? ??????????????????????????????????????????? Internet ???? Local ISP ?????????????? ??????????????????? VPN ??????????????????????????????????? ???????????????????????????????????????????? WAN ????????????? ????????????????????????????????????????????? WAN ????????????????


3. VPN-Based Extranets

?????? Application ??? VPN-Based Extranets ????????????????????????????????????? ?????????????????????????????????????????????????????????????????????????????????????????????????????? ???????????? Application ?????????????? Firewall ???????????????????

?????????????????????? ??????????????? Virtual Private Network ???????????????????? 2 ??? ???????????????????????????????????????????????????????????????????? VPN ????????????????  ?????????????????????????????????????????????????????? Virtual Private Network (VPN) ???????????????????????????????????????? http://www.alliedtelesyn.com  ????????????????????? Technical Support ??? MVT  ???. 0-2993-8989   ???? E-mail ????? smartcare@mvt.co.th  ?????????????????????? . . .

????????? : Allied Telesyn International (Asia) Pte. Ltd.

 
 
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