Cisco Routers – ISR.
The Cisco Integrated Services Router (ISR) is one of the most popular and rugged networking devices to meet the ever-growing communications needs for homes and offices.
Cisco routers are equipped with multifunctional capabilities, these includes routing and LAN switching, security, voice, and WAN connectivity all in one device. This makes the ISR ideal for homes and medium-sized businesses and for ISP-managed customers.
The Cisco ISR routing function allows a network to be broken into multiple local networks using subnetting and supports internal LAN devices connecting to the Internet or WAN.
The Cisco Internetwork Operating System (IOS) software provides features that enable a Cisco device to send and receive network traffic using a wired or wireless network.
There are different types and versions of Cisco IOS. Cisco IOS are designed to operate on specific models of routers, switches, and ISRs. It’s recommended you view the version of your device before starting your configurations. To view your device version, use the Show version command.