Often we establish VPN site to site on the internet using public IPs as the tunnel source and destination, but if one of the nodes do not have public IP from the ISP?
In these cases we can use tools SSL VPN like Teamviewer, Logmein or other, but if one side we have equipment such as PLC, CCTV systems or other we must seek alternatives, for example the question below.
One network located behind another nated network initiates a VPN client that will establish a secure tunnel enabling bidirectional IP traffic between the sites.
Elements of this laboratory:
- Host computer capable to virtualize.
- - 04 routers running Cisco IOS K9 (c2691-adventerprisek9-mz.124-15.T14)
- Oracle VirtualBox
- - 03 guests
Below the configuration of each router:
main_branch router config
internet router config
front_nat_network router config
remote_branch router config
remote users config
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