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HCJ26-802SK-L11 Multi-Port Magnetic Ethernet RJ-45 Connectors 2X6

The RJ network link layer is not often so simple. It may also be a virtual private network (VPN) or tunnel, where packets from the network layer are sent using tunnel protocols and other (perhaps the same) protocol suites instead of sending To the physical interface. VPNs and tunnels are usually pre-built, and they have some special features that are not directly sent to the physical interface (for example, it can encrypt the data passing through it). Because the link “layer” is now a perfect In the network, the recursive use of this protocol suite may cause turbidity. But it is an excellent way to complete the more common and messy functions. (Although you need to pay attention to prevent a packet that has been encapsulated and sent through the tunnel is re-encapsulated And send).