Use NAT rules in an existing IPsec tunnel to connect a remote network - Sophos Firewall
IPSec with VPN client(Static/Dynamic assigned IP address) to VPN 3000 Concentrator Configuration Example - Cisco
windows - How to set up routes for IPSec VPN where VPN endpoint itself must be able to contact remote network - Server Fault
IPsec configuration examples - Teltonika Networks Wiki
Configure IPSec VPN With Dynamic IP in Cisco IOS Router
SSL VPN and IPsec VPN IP address assignments 7.0.1 | FortiGate / FortiOS 7.0.0
Configuring Cisco Site to Site IPSec VPN with Dynamic IP Endpoint Cisco Routers
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Cisco IOS VPN Configuration Guide - Site-to-Site and Extranet VPN Business Scenarios [Cisco 7200 Series Routers] - Cisco
Technical Tip: IPsec VPN between static and dynami... - Fortinet Community
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IPSec VPN Tunnel with Peer Having Dynamic IP Address - Knowledge Base - Palo Alto Networks