Howto Configure PFSense Site-to-Site IPSec VPN Tunnel For Remote Access


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Originally published at: https://www.cyberciti.biz/faq/howto-site-to-site-ipsec-vpn-between-cisco-openbsd-router-pfsense/

I work from a small office/home office and I need to set up an IPSec site-to-site VPN between a Cisco/OpeNBSD IPSec-enabled gateway and firewall running PFSense. How do I configure the VPN tunnel so that I can access remote subnet and servers behiend a Cisco firewall/router securely? How do I setup a tunnel mode configuration which will provide you with an encrypted site-to-site network, allowing networks at multiple remote locations to be able to securely communicate using my PFSense located in my SOHO?