In terms of computer network systems an IP has a crucial role. Particular range of default IPs are being used in router for private internet connections. For example, Cisco brand routers typically use this Router IP - 10.0.0.1. It's useful for non-public web servers. Home broadband wireless routers will certainly make use of 192.168.1.1 in high-range. Linksys as well as Netgear wireless routers are those who use this unique IP the most.