IP security is provided in a virtual private network using network address translation by performing one or a combination of the four types of VPN NAT, including VPN NAT type \u2018a source-outbound\u2019 IP NAT, VPN NAT type \u2018b destination-outbound, VPN NAT type \u2018c inbound-source\u2019 IP NAT, and VPN NAT type \u2018d inbound-destination\u2019 IP NAT. The protector includes a ground engaging layer, a wear indicating layer and an adhesive layer. A silica-based binder is used to bind the substrates together with the microchannels running orthogonal to the nanochannels.