A network is a system of two or more connected devices, and networking is the practice of connecting these devices together so they can share resources and information. Tunneling is the part of networking that facilitates secure and efficient data transmission. It allows connected systems to communi...
2. Layer 2 Tunneling Protocol (L2TP) This protocol combines PPTP with the Layer 2 Forwarding (L2F) tunneling protocol. It strengthens the data tunnel provided by PPTP but does not provide users with encryption or privacy capabilities. As a result, the protocol is typically bundled with a secu...
But in some cases, organizations may choose to install a VPN blocker to prevent employees from accessing sites that may hinder their productivity, such as social networking or shopping sites. What Does A VPN Do? VPNs use virtual connections to create a private network, keeping any device you...
How Do SR-TP Tunnels Work? Principles of SR-TP Tunnels The SR-TP tunneling technology is implemented through the following process: Topology collection and label allocation: After IS-IS and SR are enabled on devices and a neighbor relationship is established between each pair of directly connected...
In our article "How does the internet work?" we describe how each data file is broken into a series of packets to be sent and received by computers connected to the internet. Tunneling is the process of placing an entire packet within another packet before it's transported over the ...
Keeping VPN Traffic in the Tunnel Most VPNs rely on tunneling to create a private network that reaches across the internet. In our article "How does the internet work?" we describe how each data file is broken into a series of packets to be sent and received by computers connected to ...
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How does IPsec work? IPsec connections include the following steps: Key exchange:Keysare necessary for encryption; a key is a string of random characters that can be used to "lock" (encrypt) and "unlock" (decrypt) messages. IPsec sets up keys with a key exchange between the connected devic...
Most VPNs rely on tunneling to create a private network that reaches across the internet. In our article "How does the internet work?" we describe how each data file is broken into a series of packets to be sent and received by computers connected to the internet. Tunneling is the process...
Voluntary tunneling occurs when a client computer or routing server creates a virtual connection to the target tunnel server. To accomplish this, tunneling client software and the appropriate tunneling protocol must be installed on the client computer. For the protocols discussed in this technical ...