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Goal to achieve:
Build up the IPSec VPN tunnel between ISG located in the main office and USG located in the home office.
Condition:
ISG as a Centralized multisite VPN and VoIP connectivity
ISG50 (Main Office):
WAN IP: 59.124.163.156
LAN IP: 10.5.5.1
Local subnet: 10.5.5.0/24
IPSec VPN
Phase 1:
Authentication: 1234567890
Negotiation mode: Main
Encryption Algorithm: 3DES
Authentication Algorithm: MD5
Key Group: DH1
USG (Home Office):
WAN IP: 59.124.163.151
Local subnet: 192.168.2.0/24
Phase 2:
Active Protocol: ESP
Encapsulation Mode: Tunnel
Encryption Algorithm: DES
Authentication Algorithm: SHA1
Perfect Forward Secrecy (PFS): None
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