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OSI Layer Two (bridging) and Layer Three (routing)

OSI Layer Two (bridging) and Layer Three (routing)

It’s understandable that when people refer to layer numbers it’s hard to understand what they mean when you’ve never heard of the conceptual OSI Layer model to represent computer network technology from hardware to software, then. We’re not planning to turn these pages into an in-depth technical description out of all the ideas included but simply provide you with a tremendously understanding that is basic. If you would like read about the OSI that is whole Layer look at the WikiPedia web web page alternatively. The 3 levels being most relevant here you will find the after three.

Layer 1 could be the layer that is lowest and represents the cables, system cards, and community switches

It really is called the layer that is physical the most obvious reasons: this might be essentially the system gear it self.

Layer 2 is low degree rule that controls the movement of traffic between products

This has some traffic control, and structures of information travelling with this layer could be of just about any protocol kind.

Layer 3 is where protocols like TCP and UDP do their work

These protocols make packets of information which have a destination and source target in order for routers can figure out the best place to deliver it.

OpenVPN by default functions in layer 3 mode (also referred to as tun or mode that is routing where it will take for instance TCP and UDP packets and move them through the VPN tunnel to a target location. As an example you can easily configure the OpenVPN Access Server to deliver traffic from an OpenVPN customer by having a location from the general public Internet through the OpenVPN tunnel.