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Definition

Router is internetwork connecting device that determines most efficient path for sending a data packet to any given network.

Description

• Used to connect two or more similar or dissimilar topological LANs or WLANs
• Shares available bandwidth with multiple computers in a network.
• Provides a better protection as a hardware firewall against hacking.
• Routers are intelligent enough to determine shortest and fastest path from source to destination in a network using algorithms.
• Operates at network layer of OSI model.
• Wireless routers are now widely used in home and offices as they allow a user to connect easily without installing any cables.

Types based on defining paths

Static router

• System administrator defines the shortest path in the network by executing commands.
• Have some limitations and not that much effective than dynamic router.

Dynamic router

• Router itself determines the shortest path between the computers in the network.
• System administrator doesn't need to interact with router that saves time and cost.
• This types of routers are used in greater extend compare to static router.

Basic types

• Wired routers
• Wireless routers