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eth0 is the interface name of the network interface card representing an Ethernet port. ppp0 is a PPPoE interface, which is configured as the default route in this example. A default route is recognized by the destination 0.0.0.0 and the flag G. A network router is identified by the network mask 255.255.255.255 and the flag H.
Route table showing internet BGP routes . In computer networking, a routing table, or routing information base (RIB), is a data table stored in a router or a network host that lists the routes to particular network destinations, and in some cases, metrics (distances) associated with those routes.
An infobox template for highway articles. Template parameters [Edit template data] This template prefers block formatting of parameters. Parameter Description Type Status Country country The ISO 3166-1 alpha-3 code of the country the route is in. String optional State state The two to three letter abbreviation of the Australian, U.S., or Mexican state the route is in. String optional Province ...
The administrator can arbitrarily reconfigure the administrative distances, which affects the ranking of the preferred routes by the routing process. On Cisco routers, static routes have an administrative distance of 1, making them preferred over routes issued by a dynamic routing protocol. The administrative distance is a value that is always ...
Template for displaying diagram composed of icon images and text labels in uniform style. Template parameters [Edit template data] This template prefers block formatting of parameters. Parameter Description Type Status Inline state inline Remove title bar and border for transclusion in infobox String optional Table title title Official title of the system. Value «no» will remove the table ...
In other words if A learns from B that the path to C is through B then it will not tell B to route packets destined for C through A. Likewise, a link-state routing protocol may keep a database containing the state of different links in the network, representing a "map" (so to speak) of the network. But the portion of the network whose routes ...
New routes learned from an iBGP peer are re-advertised to all eBGP peers only. These route-propagation rules effectively require that all iBGP peers inside an AS are interconnected in a full mesh with iBGP sessions. How routes are propagated can be controlled in detail via the route-maps mechanism. This mechanism consists of a set of rules.
Cisco routers, for example, attribute a value known as the administrative distance to each route, where smaller administrative distances indicate routes learned from a protocol assumed to be more reliable. A local administrator can set up host-specific routes that provide more control over network usage, permits testing, and better overall ...