How are packets routed?
When a packet arrives at a router, the router examines the IP address put there by the IP protocol layer on the originating computer. The router checks it’s routing table. If the network containing the IP address is found, the packet is sent to that network. Hopefully the next router will know where to send the packet.
How the packets travel from the source IP address to the destination IP address within the network?
In the simplest terms, IP Routing is the process of moving packets from its source to its destination across internetworks. To be able to route packets, a router must know at a minimum the following: Destination address. Neighbor routers from which it can learn about remote networks.
How does a device know the destination is not on the local LAN?
So when a device wants to send an IP packet outside the local LAN, it sends an ARP request using the default gateway. The router replies with its MAC address, and the device uses this as the destination address for the Ethernet frame in which it has encapsulated the IP packet.
Which entry would be chosen by the router to forward the packets?
If a static route and a rip learnt route are available on a router which entry would be chosen by the router to forward the packet? Static route would be chosen since it has lower administrative distance than rip.
What happens when a router does not know how do you forward a packet to target destination network?
If the router’s forwarding tables know where the packet should go, the router will send the packet out along the appropriate route. If the router does not know where the destination network is, it will forward the packet to its defined gateway, which will repeat the same process.
How are packets know which device on another LAN to?
In order to determine this information, Every router maintains routing tables and one or more protocols are then used in order to determine the path of the packet. Typically, for small offices and homes, the protocol used is RIPv2.
What happens when a packet is sent to a router?
The frame is received by the Switch. The Switch forwards the frame to the default gateway, which, in the most of the cases, would be your router. The router receives the packet and removes the network layer header. After removing the header, it looks at the destination IP address in the packet.
How is information split into packets in a network?
Up to this point, you have seen how to classify networks; you know that networks have an architectural type, topology, and protocols; and you know that networks are built to share information and resources. You also know that information is split into packets before being shared.
How are packets made to reach their destination?
Broadly, there are two ways in which the packets can be made to reach from the source to destination in the network. Those two methods are called: Let us know more about these two methods of delivering packets across the internet.