[Openswan Users] Connecting two private networks by VPN

[Craig Chandler]

Hi,
Currently i have two private networks seperated by the internet as below

both gateways use iptables

Network 1-------Gateway1(NAT) ............Gateway2(NAT)----Network 2
192.168.0.0     192.168.0.1 int           192.168.0.1 int  192.168.0.0

I want to connect the two networks with a VPN and i have a number of 
questions before i get going

1. Do i need to change the gateway 2 internal IP and the internal 
network 2 subnet. (ie to 192.168.1.1 and 192.168.1.0)? If i do change 
the ip's will windows networking (simple drive sharing etc) still work

2. what NAT rules need to be added if any to the iptables?

3. is the following setup correct

conn %default
                 authby=rsasig
                 # Local security gateway and subnet behind it.
                 left=external_ip
                 leftsubnet=192.168.0.0/24
                 leftsourceip=192.168.0.1
                 leftrsasigkey=%cert
                 leftcert=shitkicker-cert.pem
                 auto=add

conn network2
                 right=external_ip2
                 rightsubnet=192.168.0.0/24
                 rightsourceip=192.168.0.1
                 rightrsasigkey=%cert
                 rightcert=client-cert.pem
                 auto=add
-- 
Craig Chandler
Application Developer
InterDynamics Pty. Ltd.

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Craig.Chandler at InterDynamics.com

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