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Do routers do forwarding?
Routers are specially configured systems with multiple physical interfaces that connect the router to more than one local network. Therefore, the router can forward packets beyond the home LAN, regardless of whether the router runs a routing protocol.
Does the router make the forwarding decision based on the IP address?
Routers can access IP packets carried to them in frames, so they can make forwarding decisions based on the IP destination address they find. The forwarding of packets by routers is referred to as packet switching.
How does a router determine where to forward data?
A primary function of a router is to forward packets toward their destination. This is accomplished by using a switching function, which is the process used by a router to accept a packet on one interface and forward it out another interface.
Do I need a router for Wi-Fi?
You do not need to have a router to use Wi-Fi as long as you’re not trying to share an Internet connection. The common consumer Wi-Fi router is actually a combination device that includes a network switch, a network router and a Wi-Fi access point.
When a router makes a forwarding decision which address is used?
Layer 2 addresses are used to make forwarding decisions.
What does ” 1 / 0 ” mean in router switch?
Notice that each contains “ [1/0].” The “1” is the administrative distance for these routes. The administrative distance is what tells the router how trustworthy this type of route is. Since the network administrator must have entered these static routes, this route must be very trustworthy.
What is the default IP address for a Cisco router?
You might also use this command when your low end Cisco router is in boot mode in order to TFTP a Cisco IOS® Software image to the router. In boot mode, the router does not have ip routing enabled. This example defines the router on IP address 172.16.15.4 as the default route: ip default-gateway 172.16.15.4.
Can a static route be used with the IP default-network command?
As with the ip default-network command, using the static route to 0.0.0.0 is not dependent on any routing protocols. However, ip routing must be enabled on the router. Note: IGRP does not understand a route to 0.0.0.0. Therefore, it cannot propagate default routes created using the ip route 0.0.0.0 0.0.0.0 command.
Why does Cisco IOS 12.0t not advertise default route?
In Cisco IOS Software Release 12.0T and later, RIP does not advertise the default route if the route is not learned via RIP. It may be necessary to redistribute the route into RIP. The default routes created using the ip route 0.0.0.0 0.0.0.0 command are not propagated by OSPF and IS-IS.