Internet

====Routing====
Computers and routers use [[routing table]]s in their operating system to [[IP forwarding|direct IP packets]] to reach a node on a different subnetwork. Routing tables are maintained by manual configuration or automatically by [[routing protocol]]s. End-nodes typically use a [[default route]] that points toward an ISP providing transit, while ISP routers use the [[Border Gateway Protocol]] to establish the most efficient routing across the complex connections of the global Internet. The [[default gateway]] is the [[Node (networking)|node]] that serves as the forwarding host (router) to other networks when no other route specification matches the destination [[IP address]] of a packet.<ref>{{Cite web|url=https://www.lifewire.com/how-to-find-your-default-gateway-ip-address-2626072|title=How to Find Your Default Gateway IP Address|last=Fisher|first=Tim|website=[[Lifewire]]|access-date=25 February 2019|archive-date=25 February 2019|archive-url=https://web.archive.org/web/20190225162425/https://www.lifewire.com/how-to-find-your-default-gateway-ip-address-2626072|url-status=live}}</ref><ref>{{cite web|url=https://www.techopedia.com/definition/2184/default-gateway|title=Default Gateway|archive-url=https://web.archive.org/web/20201026160616/https://www.techopedia.com/definition/2184/default-gateway|archive-date=26 October 2020|website=techopedia.com|date=30 June 2020 }}</ref>