Most IP datagram reassembly algorithms have a timer to avoid having a lost fragment tie up reassembly buffers forever. Suppose that a datagram is fragmented into four fragments. The first three fragments arrive, but the last one is delayed. Eventually, the timer goes off and the three fragments in the receiver's memory are discarded. A little later, the last fragment
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- Most IP datagram reassembly algorithms have a timer to avoid having a lost fragment tie up reassembly buffers forever. Suppose that a datagram is fragmented into four fragments. The first three fragments arrive, but the last one is delayed. Eventually, the timer goes off and the three fragments in the receiver's memory are discarded. A little later, the last fragment stumbles in. What should be done with it?R6Fragmentation of an IP datagram takes place if its size is larger than the MTU of the subnet over which the datagram will be routed. Most IP datagram reassembly algorithms have a timer to avoid having a lost fragment tie up reassembly buffers forever. Suppose a datagram is fragmented into four fragments. The first three fragments arrive, but the last one is delayed. Eventually the timer goes off and the three fragments in the receiver's memory are discarded. A little later, the last fragment stumbles in. What should be done with it?It is important to keep in mind that the reordering and reassembly of packets takes place during the transport step of the TCP/IP protocol suite. The Internet or the data layer are two examples of lower levels of abstraction that a firewall is able to function at. If a traffic stream is either out of order or has been deleted, a firewall that uses stateful inspection will be unable to determine anything about the stream's contents.
- 5. Expand the information on the Transmission Control Protocol for this packet in the Wireshark “Details of selected packet” window (see Figure 3 in the lab writeup) so you can see the fields in the TCP segment carrying the HTTP message. What is the destination port number (the number following “Dest Port:” for the TCP segment containing the HTTP request) to which this HTTP request is being sent?Write a program to simulate the behavior of the CSMA/CD protocol over Ethernet when ther are N stations ready to transmit while a frame is being transmitted. Your program should report the times when each station successfully starts sending its frame. Assume that a clock tick occurs every slot time (51.2 microsec) and a collison detection and sending of a jamming sequence takes one slot time. All frames are the maximum length allowed.There is a chance that media access control (MAC) addresses will be used for more than one network interface all at once. Why have you come to the conclusion that you should not go through with it? Is there a correlation between the usage of many network interfaces and an increase in the likelihood of IP address collisions? Is there a purpose or meaning to the activity that's being conducted right now?
- Take for example a scenario in which one computer on the Internet sends a packet to another computer via the network layer. The information included in the packet's logical destination address has been tampered with. Where is the item supposed to be delivered? How will the situation be relayed to the computer that is the cause of the problem?so given two printer, one of IP address is 200.23.16.202 and subnet mask is 255.255.255.224, and other one IP address is 200.23.16.170 and subnet mask is 255.255.255.224. Suppose the network that hosts the above printer is re-configured with other networks in the building. After re-configuration, the printer's IP address would remain the same but its network is changed with a new subnet mask, which is changed to 255.255.255.128. This means, even the printer's IP address looks the same, its network ID and host ID are different from those before re-configuration. Find the new network ID and host ID of this printer. You must write both in the standard dot-decimal format without attaching the subnet mask.Consider a scenario in which Host A wants to simultaneously send packets to Hosts B and C. A is connected to B and C via a broadcast channel—a packet sent by A is carried by the channel to both B and C. Suppose that the broadcast channel connecting A, B, and C can independently lose and corrupt packets (and so, for example, a packet sent from A might be correctly received by B, but not by C). Design a stop-and-wait-like error-control protocol for reliably transferring packets from A to B and C, such that A will not get new data from the upper layer until it knows that both B and C have correctly received the current packet. Give FSM descriptions of A and C.
- It is feasible to transmit a sequence of packets from one host to another using the same path between the two hosts. Please enumerate the various components of the end-to-end delay for a single packet. Is one of the delays going to be a set amount of time, while the other one has a more fluid duration?Write aprogram to find the ip dotted decimal notation conversion from decimal to binary,octal and hexadecimal and vice versa also find the result of NOT and AND operation of ipv4 adresses. a. 114.34.2.8 Find the result of each operation: a. NOT (22.14.70.34) Find the result of each operation: a. (22.14.70.34) AND (255.255.0.0) ALso develop a program to find classes of ip adress and first and last address,subnet mask also. Develop in javaHost A and B are communicating over a TCP connection. Host B has already received from Host A all bytes up through byte 23. Suppose Host A then sends two segments to Host B back-to-back. The first and the second segments contain 30 and 50 bytes of data, respectively. In the first segment, the sequence number is 24, the source port number is 3000, and the destination port number is 80. Host B sends an acknowledgment whenever it receives a segment from Host A. A. In the second segment sent from Host A to B, what arethe sequence number_________,source port number __________,and destination port number__________?B. If the second segment arrives after the first segment, in the acknowledgment of the second segment, what arethe acknowledgment number___________,the source port number__________,and the destination port number __________?C. If the second segment arrives before the first segment, in the acknowledgment of the first arriving segment,what is the acknowledgment number ___________?D.…