Editing Stub network (section)

== Character ==

* An enterprise {{nobr|[[local area network]] (LAN)}} that connects to the corporate network by only one [[Router (computing)|router]], or multiple [[Default gateway|default routers]] connected to the same logical [[Upstream (networking)|upstream]] destination.
* A single LAN which never carries [[Network packet|packets]] between multiple routers connected to it. All traffic is to and/or from local [[Host (network)|hosts]]. The routers will only route packets into the LAN if it's destined for the LAN, and out from the LAN if it originated on the LAN.
* A person, or workgroup, who is connected to an {{nobr|[[Internet service provider]] (ISP)}}, by only one router, is a stub network with respect to the ISP.  This stub network is part of the ISP's {{nobr|[[Autonomous system (Internet)|autonomous system]] (AS)}}, discussed below.
* For each [[Network interface controller|interface]] on which no default route (also called the gateway of last resort) has been elected, {{nobr|[[Open Shortest Path First]] (OSPF)}} refers to these [[Subnetwork|subnets]] as stub networks.
* An OSPF stubby area is one which receives routes from other areas in the OSPF domain but for external routes, which are communicated via a Type 5 [[Link-state advertisement]], the stubby area is only aware of a default route
* An OSPF totally stubby area is one which only has a default route to the rest of the OSPF [[routing domain]]. Such an area may have more than one router, but these routers will only know about the default route to the outside.
* A stub [[Autonomous system (Internet)|autonomous system]] that is connected to only one other autonomous system, through which it gains access to the Internet. This is also called a stub AS, which characterize the great majority of AS connected to the Internet.<ref>[http://thyme.apnic.net Weekly Routing Report], Routing Analysis Role Account</ref> as of June 30, 2007, there were 224622 routes seen by the {{nobr|[[Asia-Pacific Network Information Centre|Asia Pacific Network Information Centre]] (APNIC)}} router. These came from 25577 autonomous systems, of which only 74 were transit-only and 22272 were stub/origin-only. 3305 autonomous systems provided some level of transit.
* Stub networks are not to be confused with transit networks, as transit networks contain at least two [[Router (computing)|routers]]. These networks differ from stub networks since they are able to allow information to pass through them (hence the name). 
* The stub network is unique in the sense that it contains only one router, that router being the gateway to the network. Stub networks are also capable of implementing multi-homing technology. This technology is focused on setting a single computer to host multiple network connections and [[IP addresses]].
* Stub networks are useful in situations where the OSPF (Open Shortest Path First) protocol needs to map out the [[topology]] of the network. Stub networks serve a special purpose in that they are a certain area within the construction of a network where IP addresses are filtered out and replaced with default routes.
* The experimental evaluation of stub networks has pushed for the use of [[ad hoc]] networks to act as stubs for larger multi-service networks. These networks are connected to a larger infrastructure in order to deliver a range of services including security, deliverance of [[unicast]] and [[multicast]] services, and many others to improve the functionality of these [[ad hoc]] networks.