2021/08/16 ???????????? IP ? IPsec VPN??????????????????SoftEther VPN?/?PacketiX VPN??????????????????????
????????
2021/08/16 AM 02:50
SoftEther VPN Project / ??????????
? ??

????
?????????2021/08/16 ??? ?SoftEther VPN?/?PacketiX VPN?? Ver 4.37 Build 9758
Beta ??????????????

??????????SoftEther VPN?/?PacketiX VPN???????????????? VPN ???????????IPsec ??
(L2TP/IPsec, EtherIP/IPsec ??? L2TPv3/IPsec) ?????????????????????????????
• ?SoftEther VPN?/?PacketiX VPN???L2TP/IPsec??? IPsec VPN ???????????????
????????????????????? (Pre-shared key) ??vpn?(3 ?????????????) ????????????
??? / ??? ?1:• ???????????????????????? IP ????? IPsec VPN ??????????????????????????????
??????SoftEther VPN?????PacketiX VPN????? IPsec ???????????????????????
????????????? CPU??????????????????????????????????? L2TP/IPsec ????????
???????????????????

? 1: 2021/8/16 AM 04:06 ??: ESP ????? SPI (Security Parameter Index) ??????????????
???????????????????????????????????????????IPsec ????? (Pre-shared key) ?????????
?????? SoftEther VPN / PacketiX VPN ???????CPU????????????????????????????????
????????????????????IPsec ????? (Pre-shared key) ??????????????Build 9758 ???????
?????

??
• 2021/08/15 08:40 ?????????????????????????????????????? IP ????? IPsec VPN??????????????????????????????????????
• ??????????????????????????????????????SoftEther VPN?????PacketiX VPN???
?????????????????????????????????????????SoftEther VPN?????PacketiXVPN????????????????????(?SoftEther VPN?????PacketiX VPN???????????
IPsec ???????????????????????????)• ????SoftEther VPN ??? PacketiX VPN ? L2TP/IPsec ?????????????????????????
?? (Pre-shared key) ??vpn?(3 ?????????) ??????????????????????????? IPsec ???
????????????????????????????????IPsec ????????????????????SoftEther VPN ?
?? PacketiX VPN ?????? CPU???????????????????????????????? L2TP/IPsec ??
????????????????VPN ????????????????????????????????
• ????????????????? IP ????? IPsec VPN ?????????????????????????????????????
?????????????????????
• ???????????????SoftEther VPN ??? PacketiX VPN ??????????????????????????
???????????????????????????????????

????
SoftEther VPN ??? PacketiX VPN ???????????? IPsec ?????????????????????????????
CPU???????????????????????????????? L2TP/IPsec ????????????????????????????????
?????????????????
1. ?????IPsec ????????????????? IPsec ????? (Pre-shared key) ???vpn?(3 ????????
?) ???8 ?????????????????????????????????????????vpn??????????????????????
???????????????????????????????
2. 2021/08/15 ????????????? Ver 4.37 Build 9758 ????????????????? Ver 4.37
Build 9758 ???IPsec Informational Exchange ????????????????????????????????
???????????????????????????????????????????
???????????? 1. ??? 2. ????????????????????

??
????????????2021 ? 8 ? 15 ? (?) ?? 8 ? 40 ?????????????????????? IP ??????????????????
????? IP ??????????????????????????? IPsec VPN ??????????????????????????????????
?????????????????????????????IPsec VPN ?????? (Pre-shared key) ??????????????????
???????????????????IPsec VPN ????????????????????????????????????????????

?????????? IPsec VPN ????????????????SoftEther VPN ??? PacketiX VPN ????????????
??????????????? IPsec ?? (L2TP ??????????????????????? IPsec ??) ??????????????????
?????????SoftEther VPN ??? PacketiX VPN ???????????????????????SoftEther VPN ???
PacketiX VPN ????????? 3 IPsec VPN ??????????? IPsec ??????????????????SoftEtherVPN ??? PacketiX VPN ? L2TP/IPsec ???????????? VPN ????????IPsec ??????? L2TP/IPsec ??????????????????? VPN ????????????????? (EtherIP/IPsec ????? L2TPv3/IPsec?????? VPN ???????????) ??????????? VPN ??????????????????????? ISAKMP Phase 1
ID ????????????????

???????SoftEther VPN ??? PacketiX VPN ? L2TP/IPsec ???EtherIP/IPsec ????? L2TPv3/IPsec ???????????????????????????????? (Pre-shared key) ??vpn?(3 ?????????) ????????
????????????????????????????????? IPsec ???????????????????????? L2TP ???????????
??????????????????????VPN ????????????????? CPU????????????????????????????????
???????????SoftEther VPN ??? PacketiX VPN ?????????????? IPsec ???? (????????????)???????????????IPsec ???????????????????????????????????????????? ESP ??????????
VPN ?????????????SoftEther VPN ??? PacketiX VPN ???????????????????????????????
?????????????????????? IPsec ?????????????????IPsec Informational Exchange ????????
?????? IPsec ?????? (????????????) ???????????IPsec Informational Exchange ????????
?????????????? ESP ????? VPN ???????????????????????????????????????????????????
???? SoftEther VPN ??? PacketiX VPN ? VPN ????? IPsec ???????????????????????????
??? CPU????????????????????????????????????????????????????????????????VPN ????
????????????????? IPsec ????????????????????? L2TP/IPsec ????????? VPN ??????????
??VPN ??????????????????????????????????????????????????????????????????????????
?????IPsec ESP ????? SPI ??????????????????????????????????????? (DoS ??) ????????
???????

??? IPsec Informational Exchange ???????????????????????SoftEther VPN ??? PacketiX
VPN ?????????????????????????????????????????????CPU??????????????????????????
???????????????????2021/08/15 ????????????? Ver 4.37 Build 9758 ???IPsec
Informational Exchange ??????????????????????????????????????? IPsec ?????????????
??????1 ????? 20 ?? IPsec Informational Exchange ??????????????????????????????????

????????????????????? IPsec VPN ???????????????????CPU?????????????????????????
???????????

?????????????????????????????? (Pre-shared key) ??vpn?(3 ?????????) ???????????????
?????????????????vpn???????????????????????????????????VPN ????????????????????
??8 ?????????????????????????????

?????? IPsec VPN ?????????????SoftEther VPN?/?PacketiX VPN???????????????????
????????????????????????????????????