For road warrior WireGuard and other purposes, you need to set up and configure firewall rules. You need to configure NAT (Network Address Translation) to allow WireGuard clients to access the Internet. In Linux, we use a term called IP Masquerade. It means one to many NAT (1:Many). We also need a FORWARD chain rule. This page explains how to set up NAT and FORWARD firewall rules for WireGuard in Linux.
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