Ipsec vs openvpn vs tnc
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Looking to deploy pfsense in multiple environments but behind customer networks and need vpn tunnel back to central location. I will not have a 1:1 nat all the time so I prefer a solution which will work behind a customers existing firewall with NAT.
I need a router and vpn solution and was hoping I could continue to use pfsense for both as a solution rather than break this up into several components.
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For that situation I prefer OpenVPN since it generally has an easier time punching out from behind random end-user networks.