IP??

1
IP??
2 G
3G ????????????
2.5 G
?????????????
???????????????
E-mail
Web
Web
E-mail
Data-base
etc
TCP
iMode
WAP 1.0
IP
cdmaOne, PDC/P
SMS, PDC/P
GSM
IMT-2000
WLAN
Blue-tooth
CDMA
GPRS
LMDS
PDC
etc
PHS
??????????
??????????
??????????/????
2
IPv6???????
PMTU
ICMP

• IPv4
• ???????????????????????
• ??????????????????????
• IPv6
• ????????????????????????????
• IPSec?????????

IPSec
RIP
IPv4
3
VPN???????????????

• ???????????????(2004???)
• ??????????(150Mps??????VPN?)
• ??????????????

???????????????VPN??? ???????!!
??????????
4
VPN?????????VPN???

• ???????????????????
• ???????????????????
• ???????????????????

??????????
5
VPN?????????VPN??????

• 2006????2000????????
• ISP???????????????
• ??????????????????????
• ??????????VPN?????
• ????????????????????? ??

6
SSH?????

• 1995?????????(Tatu Ylönen)????????????????Secure
  Shell??????????????????????IT??????????
• Secure Shell ?????????????????????????
• ?????????????????????
• ?????????????(???)??

Tatu YlönenPresident and CEO
7
? ?
2000 ??????????/???????/???????????????
1999 IPSec ??????????? Ericsson, Nokia, Lucent
Technologies and Sun Microsystems
1998 ???????????????SSH Communications Security,
Inc.
1997 ??? IPSec ???????
1996 IPSec / SSH2 ??????
1995 SSH Communications Security Ltd. ??
8
2001???????

• ???160?
• ?? 19,9 million (27.8)
• ????? 8,1 million (???41)
• ????SSH Communications Security Corp.????????
• ????(100???)
• SSH Communications Security Inc.
• SSH ????????????????(?)