Category Archives: WAN

IPSEC Site-To-Site VPN on CENTOS LINUX

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How To Setup IPSEC Site-To-Site VPN on Linux CentOS

Scenario

Linux Gateway Server with 2 Lan Cards on Each office Location. Lets Call them A and B.
A is Head Office Linux Server and B is Branch Office Linux Server.
A has CentOS 6.4 , Extenal IP Address 1.1.1.1 , Local Lan Subnet 192.168.100.0/24
B has CentOS 5.9, External IP Address 2.2.2.2, Local Lan Subnet 10.1.1.0/24
To Accomplish the task we will use OpenSwan.
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