1. ?????? VPN ???
1.1. ???????????????? NAT ???
SoftEther VPN ??????? 1 ????????????????????????? NAT (Network Address
Translators) ???????????????????????NAT ????????????????????????????

1.1.1.jpg??????????????? HTTP/HTTPS ????????????????
SoftEther VPN ? HTTPS ???????????????????????????????
?????????????????????????????????????????????????????????????????????????????????
??????????????????????????????? IP ???????????????????????????????????????????
NAT ????????????????????????????????
IPsec?L2TP ??? PPTP ???????? VPN ??????????????????????????????????? NAT ?????
VPN ???????????????????????????? VPN ?????? NAT ??????????????????????VPN ???
????????IPsec ??? L2TP ? ESP (Encapsulating Security Payload) ?????????PPTP ? GRE(Generic Routing Encapsulation) ?????????????????????? IP ?????????????????????????
??????????????? NAT ?????? VPN ??????????????????????????? IPsec?L2TP ??? PPTP????? VPN ??????????????????????????????????????????? VPN ?????????????????????
???????????????? VPN ??????????????????????????????????????VPN ????? L2TP ???
PPTP ???? VPN ????????????????????????????????? NAT ???????????? VPN ?????????
????????????????????????????????? L2TP ??? PPTP ???????????? VPN ??????????????
??????????????????????????????L2TP ??? PPTP ????????????????????????????????
NAT ?????????????????????????
??????????????????????? VPN ?????????????????????????????????????????????????
SoftEther VPN ??????: VPN ???????????? HTTPS ????????
SoftEther VPN ? VPN ???????????? HTTPS ????????????HTTPS (HTTP over SSL) ????
?? TCP/IP ????? 443 ?????????????????? Well-known ???????????????????????????????
?? NAT ??????? HTTPS ??????????????????????????????????

1.1.2.jpg???? VPN ?????SoftEther VPN ??Ethernet over HTTPS????????????????

HTTPS ??????????????????????????Web ???????? Web ??????????????????? HTTPS ??
????????????HTTPS ????????????????????????????????????????????????????????????
HTTPS ????????????HTTPS ???????????????????????????????????????
HTTPS ??????????????????????????????????????????????????? NAT ? HTTPS ???????
??????????LAN (Local Area Network) ?????????????????????????????????????????????
? HTTPS ????????????????????????????????VPN ???????????????????????????????
????SoftEther VPN ? HTTPS ??????????VPN ??????????????????????????????SoftEther
VPN ???? LAN????????????????? LAN ?????????????????????????????????????????
IPsec?PPTP ??? L2TP ?????????? VPN ?????????????????
SoftEther VPN ??????????????????????????????????????????????????????????????????
????????????? VPN ????????????????????SoftEther VPN ??????????????????? SoftEther
VPN ??????????????????????????????????????????????????????????? VPN ???????????
??
??????????????? VPN ????????????????????????????????????????????????????????????
??????????????ESP ? GRE ?????? IP ??????????????????????????????????????????????
?????????????????????????????????????????????????????????????????????????????????
?????????????????????? VPN ?????????????????????????????????????????????????????
? VPN ????????????????????????????????????????????????????
????? LAN ????????????????????????????????????HTTP ? HTTPS ???????????????????
???????????????? VPN ??????????????????????????????????????? VPN ????????
SoftEther VPN ???? VPN ????? HTTPS ????????????? VPN ????????????????
??: SoftEther VPN ???? VPN ????????????????????? NAT ??????????????????? VPN ??
???

1.2. ??????? VPN ??????????
SoftEther VPN Server ? 1.1 ???????? HTTPS ???? VPN ????????????????????????
SoftEther VPN Server ? L2TP/IPsec?OpenVPN?MS-SSTP?L2TPv3 ??? EtherIP ???????
????????? VPN ???????????????????????? VPN ???????????????????????????????
???? iPhone?iPad?Android?Windows Mobile ?????????????????????? SoftEther VPN
Server ??????????????????????????????? Cisco Systems ?????? VPN ????????????
L2TPv3/IPsec ??? EtherIP/IPsec ???????????????????????? SoftEther VPN Server ?
VPN ?????????????
1.2.jpg

SoftEther VPN Server ?????????? VPN ????????????????
L2TP/IPsec ??????????
?????????????? L2TP/IPsec VPN ????????????????????????? SoftEther VPN Server ?
VPN ???????????????????????????????????????

iphone.jpg???? Mac?iPhone?iPad ??? Android ?? SoftEther VPN Server ????????
• iPhone• iPad• Android• Windows Mobile• Windows XP / Vista / 7 / 8 / RT
• Mac OS X
IMG_4091.PNG

iPhone ??? Android ? SoftEther VPN Server ????????

ss1.2_2.jpg
GUI ???? L2TP/IPsec ??????????????
OpenVPN ??????????
SoftEther VPN Server ??OpenVPN ?????????? OpenVPN ??????????????????????
OpenVPN ????????? VPN ???????? VPN ???????????????????? OpenVPN Server ?????
? SoftEther VPN Server ????????????????????????????? SoftEther VPN ???????????????
????????????????????????
SoftEther VPN Server ???????? OpenVPN ??????OpenVPN Technologies, Inc. ??????
OpenVPN ???????????????????????????????????SoftEther VPN Server ???? OpenVPN??????????????????????????????????? OpenVPN ?????????????????? VPN ???????????
????????????? SoftEther VPN Server ???????????????????SoftEther VPN ??OpenVPN ?
????????????????? L3 VPN ???????? L2 VPN ?????????????????????
OpenVPN Server ????? SoftEther VPN Server ???????????????????:• SoftEther VPN Server ? OpenVPN Technologies, Inc. ?? OpenVPN Server ?????
????????????????
• OpenVPN ?????????????????VPN ?????????????????? (.ovpn ????) ???????????
• SoftEther VPN Server ? OpenVPN ??????????????????????????? VPN ????????
?????? SSL-VPN?L2TP/IPsec?MS-SSTP?L2TPv3/IPsec ??? EtherIP/IPsec ?????
????????OpenVPN ??????? VPN ?????? VPN ??????SoftEther VPN Server ????
???????? 1 ?? VPN ?????????????????
• ?????????????????? GUI ???????????????????????????????VPN ??????????????
???? 1 ???????????????????
• OpenVPN ????????????????????? (?: Linux?Mac OS X?UNIX?iPhone ???
Android) ?? SoftEther VPN Server ?????????????

ss1.2.jpg

OpenVPN ??????? GUI ?????????????

IMG_4099.PNG

PC ?? OpenVPN ???????iPhone / Android ?? OpenVPN Client ????????
Microsoft SSTP VPN ??????????
SoftEther VPN Server ? Microsoft SSTP VPN ?????????????????Windows 7 / 8 / RT ??
SSTP VPN ???????????????????? OS ?? SoftEther VPN Server ? VPN ?????????????
SSTP (Secure Socket Tunneling Protocol) ? Microsoft ?????????? PPP over HTTPS ????
???????
???SSTP VPN ??????? Microsoft Windows Server 2008 / 2012 ???????????????????????
Microsoft ????????????????????????????????????????????????????????? Windows
Server ? VPN ??????????????SoftEther VPN Server ???????Microsoft SSTP VPN Server????????????????Microsoft ??????????????????????????????????
Microsoft SSTP VPN Server ????? SoftEther VPN Server ???????????????????:

• Microsoft ?? SSTP VPN Server ??????????????????
• Windows ???????? VPN ????????????????????????Windows ??????? SSTP
VPN ??????? SoftEther VPN Server ???????????????
• Windows RT (ARM ?? Windows) ????????? SSTP VPN ???????????????
• ?????????????????? GUI ???????????????????????????????VPN ??????????????
???? 1 ???????????????????
• ??? Windows Server 2008 / 2012 ????????????????????????????????????
• SoftEther VPN Server ???????? SSTP VPN ??????????Windows ??? OS ??????
??Linux?Mac OS X?FreeBSD ??? Solaris ??????????
L2TPv3/IPsec ??? EtherIP/IPsec ??????????
Cisco Systems ????????????????????????L2TPv3/IPsec ??? EtherIP/IPsec VPN ????????
????????????????????? L2 ???? VPN ?????????????????SoftEther VPN Server ? IPsec ??
L2TPv3 ??? EtherIP ???????????Cisco ??????????? VPN ?????????SoftEther VPN
Server ???????? VPN ???????????????????????? L2 ????? VPN ??????????????????????
??????Cisco ?? VPN ?????????????????VPN ?????????????????? Cisco ???????????
SoftEther VPN Server ??????????????

1.3. Microsoft ?? OpenVPN ??????????????????
SoftEther VPN ?????????2012 ?????????????????????????????????????????? ??????? ?
???????
???????? 5 ??? VPN ?????????????: SoftEther VPN?L2TP/IPsec?SSTP?OpenVPN (??? 3???) ??? OpenVPN (??? 2 ???) ??????? SoftEther VPN ????????????????SoftEther VPN
Server ???????Microsoft Corporation ???? OpenVPN Technologies, Inc. ??????????????
?????????????: Intel Xeon E3-1230 3.2GHz ??? Intel 10 Gigabit CX4 Dual Port Server
Adapter ????? Windows Server 2008 R2 x64?
• SoftEther VPN ?????????? SoftEther VPN Server ?????? 980Mbps ????????????
???
• L2TP/IPsec ?????????? SoftEther VPN Server ?????? 614Mbps ????????????
Microsoft ?? Windows Server 2008 R2 ?? Routing and Remote Access ????
(RRAS) ????????? 593Mbps ???????????????
• SSTP ????? SoftEther VPN Server ?????? 737Mbps ???????????? Microsoft ??
Windows Server 2008 R2 ????????? 715Mbps ???????????????
• OpenVPN (L3) ????? SoftEther VPN Server ?????? 89Mbps ????????????
OpenVPN ????????????????? 76Mbps ???????????????
• OpenVPN (L2) ????? SoftEther VPN Server ?????? 90Mbps ????????????
OpenVPN ????????????????? 83Mbps ???????????????
??????SoftEther VPN Server ? Microsoft ??? Windows ??????????L2TP/IPsec ????
103.5%?SSTP ???? 103.0% ????????? OpenVPN ???????????????OpenVPN ?????????

108-117% ???????????????SoftEther VPN ????? (Ethernet over HTTPS?1.1 ???) ??
980Mbps ??????????????? L2TP/IPsec ?????????? 159.6% ??????SSTP ??????????
175.2% ????????? OpenVPN ?????????? 9.8 ???????????????????

1.3.jpg????? SoftEther VPN Server ????????? VPN ?????????????????????
• ?????????????

1.4. ??????????? DNS ?? (*.softether.net)?????????????? VPN ???????????????????????????? IP ?????????????????? IP ?????????
???ISP ?????????????????????????????????????????? IP ?????????????????????
SoftEthr VPN ?????????????????????????? DNS (DDNS) ????????????????? DNS ?????
??????????????DDNS ?????????? VPN ????? IP ????? ".softether.net" ????????????????
??????????????? DDNS ??????????????????????????????????????????????
DDNS ????? "abc.softether.net" ( "abc" ?????????????????????????) ????? SoftEtherVPN Server ?????????????? DDNS ????????? VPN ??????????????????????????? DDNS????? VPN ?????????????????? VPN ?????????????????????? IP ???????????????DDNS??????????????? IP ???????????? IP ?????????????????????????????? IP ??????????????
ISP ???????????????????????????

1.4.jpg?????? DNS ? SoftEther VPN ????????????????????

ss1.4.jpg?????? DNS ???????????????????????

1.5. NAT ????????
????? VPN ??????????VPN ???????????????????????????????????????????? NAT ?????
??????? (TCP ??? UDP ???) ????????????????????????????

?????????????????????????????????? VPN ???????????????????????????SoftEther VPN
Server ???NAT ???????????????????
NAT ?????????????????????????NAT ???????????????SoftEther VPN Client ???????
NAT ??????????????? VPN Server ?????????????NAT ????????????????????????????
NAT ??????????VPN ??????????????? "DisableNatTraversal" ??? "true" ??????????????
???????????????????????? VPN ????????????? "/tcp" ??????????????????????????

1.5.jpg

NAT ???????????????????????????????

1.6. VPN over ICMP ??? VPN over DNS ?? (???? !)????????????????????????????? ICMP ??? DNS ????????????????????????????????????
?????? TCP ? UDP ????????????ICMP ??? DNS ??????????????????????????
????????????????????? SoftEther VPN ?????? - ???????????????????????????SoftEther
VPN ???VPN over ICMP?????VPN over DNS?????????????
??????????????????????????????????????????? VPN ????? ICMP ??? DNS ???????????
??????????????????????????????????????????????????????????????????

????????? LAN ????????????????????????? LAN ?? ICMP ??? DNS ??????????????????
?? LAN ?? TCP ??? UDP ?????????????????????????? VPN Server ???????????????????
???????????????????????????????????????????????????????????????????????????
VPN over ICMP ??? VPN over DNS ??ICMP ??? DNS ??????????????????????????????
?? ICMP ??? DNS ???????????????????????????????????????????????????????????????
????????????????????????????????????????????????????????????????????????? LAN ??
???????????????????????????????????????VPN ??????????? "/tcp" ?????????????????
VPN over ICMP ??? VPN over DNS ???????????

1.6.jpg??????????????????????ICMP ??????????????????????!

ss1.6.jpg????????? VPN over ICMP ??? VPN over DNS ?????????

1.7. VPN Azure ???????? (????)???? SoftEther VPN Server ?????????? NAT ?????????????? NAT ??????????????? DNS????? VPN over ICMP/DNS ??????????????????????????????????????????????VPN
Azure ??????????????????????
??????? VPN ????????? LAN ? VPN ??????????????????????????????? TCP ??? UDP ??
???????????????????????????????? 1 ????????? IP ?????????????????????????
???????????????????VPN Azure ??????????????????????????????????????????????????
????????????????? VPN Server ?? VPN Azure ???????????????????? VPN ????????????
?????????????????? VPN Server ? VPN ????????????????????????????????????? TCP/
UDP ?????????????????????VPN Server ? TCP ?????????????????????????????????????
??????? VPN Azure ????????????????????????????????? VPN Client ?????????? VPN

Azure ????????????????????????????????? VPN ????????????????????? VPN Server ???
?????????????????????????????????????????????????????????? VPN ??????????????
VPN Server ? VPN Azure ????????????VPN Server ?????????? "abc.vpnazure.net" ("abc" ?????????) ????????????????????? VPN Azure ?????????? VPN ????????????????
??
VPN Azure ???????????????????????????VPN Server ???????? GUI ??????????????????
????????? http://www.vpnazure.net/ ??????????

1.7.jpg

VPN Azure ??????????????????????????????? VPN ??????????????

1.8. ??? OS ??? CPU ???
SoftEther VPN ??????????????????????????????? VPN ?????????????????????????????
??Cisco IOS ??????? Cisco Systems ??????????????? Cisco ???????????????????
SoftEther VPN ??????????????????? OS ????????????????????????????? CPU ?????????
?????
?????????????? SoftEther VPN Server ?????????????????????????????????????????????
?????????????????????????????????SoftEther VPN ??????????? C ????????????????????
?????????????????????????????????????????????????????????????????????????????????
????????????????
• Windows
Windows 98, 98 SE, ME, NT 4.0, 2000, XP, Server 2003, Vista, Server 2008, 7,Server 2008 R2, 8 ??? Server 2012 ????????????Intel x86 (32 ???) ??? x64 (64 ?

??, ???? AMD64) ?????????? SoftEther VPN Server?Client ??? Bridge ???????
• Linux
Linux Kernel 2.4, 2.6 ??? 3.x ????????????Intel x86 (32 ???), x64 (64 ???),
ARM, MIPS ??? PowerPC ?????????? SoftEther VPN Server?Client ??? Bridge???????
• FreeBSD
FreeBSD 5.x, 6.x, 7.x, 8.x ??? 9.x ????????????Intel x86 (32 ???) ??? x64 (64 ??
?, ???? AMD64) ?????????? SoftEther VPN Server ??? Bridge ???????
• Solaris
Solaris 8, 9, 10 ??? 11 ????????????Intel x86 (32 ???), Intel x64 (64 ???),SPARC (32 ?????? 64 ??????) ?????????? SoftEther VPN Server ??? Bridge ????
???
• Mac OS X
Mac OS X 10.4, 10.5, 10.6, 10.7 ??? 10.8 ????????????Intel x86 (32 ???), Intelx64 (64 ???), PowerPC (32 ???) ??? PowerPC G5 (64 ???) ?????????? SoftEtherVPN Server ??? Bridge ???????

1.8.jpg

???????????? VPN ????????????
SoftEther VPN ?????????? OS ?????????????????