What Is VPN Passthrough and Do You Still Need It?
By
Sead Fadilpasic
Summary
VPN passthrough is a router feature that allows VPN traffic to pass through a router's firewall, primarily needed for older VPN protocols like PPTP and L2TP that use outdated NAT traversal methods. Modern VPN protocols like OpenVPN and WireGuard use more advanced techniques (like UDP encapsulation) that work seamlessly with NAT, making VPN passthrough largely unnecessary for current setups. The article explains how to check if your router has VPN passthrough settings, typically found in the router's admin panel under security or advanced settings, and notes that many modern routers have it enabled by default or don't need it at all.
Source
bskyWhat Is VPN Passthrough and Do You Still Need It?bgr.comKey quotes
· 3 pulledA VPN passthrough is a router setting that helps the device recognize data packets associated with your service, allowing them to pass through the firewall.
VPN passthrough is a feature that's only relevant for older VPN protocols like PPTP and L2TP.
Modern VPN protocols like OpenVPN and WireGuard use more advanced techniques that work seamlessly with NAT, making VPN passthrough largely unnecessary.
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