Question: How Do I Route A Packet From One Network To Another?

How does a computer figure out what IP address to send its packets to?

When a device initiates a TCP/IP session, it generates a TCP or UDP source port number to uniquely identify the session.

When the router receives this packet it uses that source port number to uniquely identify the translation.

PC1 ( 192.168..

Do IP addresses change?

Yes, your IP Address will change Even if you keep the same ISP, because you are moving to a new location, and different cables and connection method may be used, it is a very rare instance to keep the same IP Address.

Why do packets take different routes?

Because the data is divided into packets, each packet travels independently from each other and is treated as such. As a result, each packet can be sent through a different route to the destination if necessary.

How does a router find the shortest path?

In order to determine where a packet should be sent so that it can reach its desired destination, the router uses a static or dynamic routing protocol such as Routing Information Protocol (RIP) or Open Shortest Path First (OSPF), which both create and maintain a routing table.

Can you see me port? This is a free utility for remotely verifying if a port is open or closed. It is useful to users who wish to verify port forwarding and check to see if a server is running or a firewall or ISP is blocking certain ports.

How the packet flows in network?

Packet flow in different Network. … If the destination host is present in the same network,then the packet is delivered directly to destination host. If the destination host is present in different network then the packet is delivered to the default gateway first which in turn delivers the packet to the destination host.

What is in a network packet?

It turns out that everything you do on the Internet involves packets. … The packets carry the data in the protocols that the Internet uses: Transmission Control Protocol/Internet Protocol (TCP/IP). Each packet contains part of the body of your message. A typical packet contains perhaps 1,000 or 1,500 bytes.

How does ping works step by step?

The ping command first sends an echo request packet to an address, then waits for a reply. The ping is successful only if: the echo request gets to the destination, and. the destination is able to get an echo reply back to the source within a predetermined time called a timeout.

What is single source shortest path problem?

The single-source shortest path problem, in which we have to find shortest paths from a source vertex v to all other vertices in the graph. The single-destination shortest path problem, in which we have to find shortest paths from all vertices in the directed graph to a single destination vertex v.

What is Dijkstra’s shortest path algorithm?

Dijkstra’s algorithm (or Dijkstra’s Shortest Path First algorithm, SPF algorithm) is an algorithm for finding the shortest paths between nodes in a graph, which may represent, for example, road networks. It was conceived by computer scientist Edsger W. Dijkstra in 1956 and published three years later.

How does a router decide where to send a packet?

When a router receives a packet, the router checks its routing table to determine if the destination address is for a system on one of it’s attached networks or if the message must be forwarded through another router. It then sends the message to the next system in the path to the destination.

How can I see my IP address?

Click Start ->Control Panel -> Network and Internet -> Network and Sharing Center. and go to Details. The IP address will display. Note: If your computer is connected to a wireless network please click Wireless network connection icon.