Ahh so maybe it's because the packet, once out of the VPN and heading to it's destination, is (normally - it is 2019 after all!) TLS encrypted so you can't just

Ahh so maybe it's because the packet, once out of the VPN and heading to it's destination, is (normally - it is 2019 after all!) TLS encrypted so you can't just modify the payload like I said. Fair enough.