How does a packet get from one network to another?
The Internet works by chopping data into chunks called packets. Each packet then moves through the network in a series of hops. Each packet hops to a local Internet service provider (ISP), a company that offers access to the network – usually for a fee.
How do packets know where is destination?
Routers are devices used to interconnect networks. When a packet reaches a router, it will look at the destination address to determine where to send the packet. If the router’s forwarding tables know where the packet should go, the router will send the packet out along the appropriate route.
Which network device is used to route the packets to their destinations?
Routers help transmit packets to their destinations by charting a path through the sea of interconnected networking devices using different network topologies. Routers are intelligent devices, and they store information about the networks they’re connected to.
What happens when a router forwards data packets from one network to another?
What happens when a router forwards data packets from one network to another network? It encapsulates the packet in an Ethernet frame and then transmits the frame over the Ethernet network.
How does a router know where to send a packet?
Your computer will then have the destination IP address and you know know where to send the packet to, but do not know the route. 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.
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 can I Capture the packets of a LAN device in Wireshark?
You could also do this from a router that runs linux. Other options include setting up your computer as an access point and connecting your device to it, or using the technique described by @MatToufoutu, having Wireshark decrypt traffic, but then you might miss some traffic that is hidden by noise or out of range.
How are packets sent from data link to switch?
The frame from the data link layer is converted to binary data (0’s and 1’s) and sent to Switch (assuming that a switch is directly connected to the PC in this case) using a physical cable (from the physical layer) in where the destination MAC address is of the Switch.