Putting an IPsec endpoint behind a NATting router causes problems. Your best, and most-secure, choice is to configure SSL VPN Remote Access for yourself at the customer sites.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005
Putting an IPsec endpoint behind a NATting router causes problems. Your best, and most-secure, choice is to configure SSL VPN Remote Access for yourself at the customer sites.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005