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A router typically does not look into the packet payload, [52] but only at the layer-3 addresses to make a forwarding decision, plus optionally other information in the header for hints on, for example, quality of service (QoS). For pure IP forwarding, a router is designed to minimize the state information associated with individual packets. [53]
An early example of a wireless router The internal components of a wireless router. A wireless router or Wi-Fi router is a device that performs the functions of a router and also includes the functions of a wireless access point. It is used to provide access to the Internet or a private computer network.
The modem connects to a single computer or router, through an Ethernet port, USB port, or is installed in a computer PCI slot. The more common DSL router is a standalone device that combines the function of a DSL modem and a router, and can connect multiple computers through multiple Ethernet ports or an integral wireless access point.
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The WRT1900ACS was released 8. October 2015. It looks identical to the WRT1900AC, but has a 1.6 GHz dual core CPU (Same CPU as WRT1200AC/WRT1900AC v2, but overclocked to 1.6 GHz). Like the WRT1900AC v2, it has 512 MB of RAM. In January 2016, DD-WRT became available for the WRT1900ACS, as well as both versions of the WRT1900AC.
It also acts like a dynamic host configuration protocol (DHCP) to assign IPs automatically to devices connected to the network. There are two kinds of wireless gateways. The simpler kind must be connected to a DSL modem or cable modem to connect to the internet via the internet service provider (ISP).
To do this, a router needs to search the routing information stored in its routing table. The routing table contains network/next hop associations. These associations tell a router that a particular destination can be optimally reached by sending the packet to a specific router that represents the next hop on the way to the final destination.
In other words: in a converged network all routers "agree" on what the network topology looks like. [1] Convergence is an important notion for a set of routers that engage in dynamic routing. All interior gateway protocols rely on convergence to function properly. "To have, or be, converged" is the normal state of an operational autonomous system.
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