please check the attaced images to see the questions 4.3-2. The IPv4 header. Match each of the followingfields in the IP header with its description, function oruse.Length field.Fragmentation offset fieldUpper layer fieldHeader checksum fieldPayload/data fieldTime-to-live fieldVersion fieldType-of-service fieldChoose...Choose...Choose...Choose...Choose...Choose...Choose...Choose... This field indicates the total number ofbytes in datagram.This field contains ECN anddifferentiated service bits.This field contains the IP protocolversion number.This field contains the "protocolnumber" for the transport-layer protocolto which this datagram's payload will bedemultiplexed - UDP or TCP, forexample.This field_contains_ a UDP or TCPsegment, for example.This field is used for datagramfragmentation/reassembly.The value in this field is decremented ateach router; when it reaches zero, thepacket must be dropped. This field contains the Internetchecksum of this datagram's headerfields.

The network denotes the set of computer devices are connected with the communication cables It may…

4.3-2. The IPv4 header. Match each of the following fields in the IP header with its description, function or use. Length field. Fragmentation offset field Upper layer field Header checksum field Payload/data field Time-to-live field Version field Type-of-service field Choose... Choose... Choose... Choose... Choose... Choose... Choose... Choose...

4.3-2. The IPv4 header. Match each of the following fields in the IP header with its description, function or use. Length field. Fragmentation offset field Upper layer field Header checksum field Payload/data field Time-to-live field Version field Type-of-service field Choose... Choose... Choose... Choose... Choose... Choose... Choose... Choose...

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Complete the frames (x & y) given below with appropriate port, IP and MAC addresses. The sender Host E has two applications running; one for email with port number 49254 and the other for accessing the web server with port number 52167. The frame x is intended for the BRACU Web server and frame y is coming from the Email Server. (MAC addresses are alphabets and IP addresses are numbers) Port 80 Frame y K/93 BRACU Web Frame x Server BRACU G/51 Router ISP Router I/91 Port 25 H/52 F/25 Hub-PT Hubo A/20 Switc-PT Switho Swich-P Syitch1 Enail Server J/92 B/21 E/24 C/22 D/23 Sender
A UDP packet is to be sent to a network with MTU=1460 Bytes. The size of UDP data field is 2992 Bytes. Assume this packet is fragmented when traversing the network. Please give the values for the following IP header fields in each IP fragments: Total Length, MF and Offset. Note: Assume IPV4 is used. There is no option field in IP header, i.e., the size of IP header is 20 Bytes. The size of UDP header is 8 Bytes. All numbers are in decimal.
The DiffSery field in the IP header is used for implementing Differentiated
SMTP (Simple Mail Transfer Protocol) is the standard protocol for transferring mail between hosts. A TCP connection is set up between a user agent and a server program. The server listens on TCP port 25 for incoming connection requests. The user end of the connection is on a TCP port number above 1023. You have defined the packet filter rule set shown in the table below. These rules permit and/or deny inbound and outbound traffic between the user agent and the mail server. Describe the purpose of each packet filter rule in the table. Rule Direction Source Address Destination Address Protocol Destination Port Action A2 In External Internal TCP 25 Permit B2 Out Internal External TCP > 1023 Permit C2 Out Internal External TCP 25 Permit D2 In External Internal TCP > 1023 Permit E2 Either Any Any Any Any Deny
9.Correct expression tor UDP user datagram length is length of UDP = length of IP- length of IP header's length of UDP= length of UDP-length of UDP header's length of UDP = length of IP+length of IP header's length of UDP = length of UDP+length of UDP header's.
1. Please access any web site so you that you can capture TCP packets from an HTTP request. 2. Please expand all the fields in the header of your HTTP request packet. Take a screenshot for all the fields in the header fields of the HTTP packet. 3. Please expand all the fields in the header of the TCP packet in your HTTP request packet. Take a screenshot for all the fields in the header of the TCP packets. Please answer the following questions based on your HTTP request, and TCP packets screenshots: 1. What is the method used in your HTTP request? 2. What is the host name you visited? 3. What is the connection status in your HTTP request? 4. What are the source port and destination port, respectively? 5. What are the sequence number and acknowledgement number, respectively? 6. Which flags are set up in the captured packet? Explain what the flags mean.
2- Client is connecting a server via TCP to get an object from HTTP Server. Skitch the TCPwindow connection including (establishing connection, the request from client, the response byserver, sending data from server side and closing the connection).Knowing that:1- Get request from the HTTP 1.1 server is 259 bytes.2- Response from the server is 223 bytes.3- Data size requested is 900 bytes.
Q' Figure below shows the IPV4 datagram format. Fill the fields from 1 to 5 by choosing the right answers 2 16-bit identifier ID flags 3 4 32 bit source IP address 5 options Data (variable length, typically a TCP or UDP segment) 1- Field (1) is for: a- Time to live b- IP protocol version number c- Type of service d- Header checksum e- Upper layer protocol f- None of them 2- Field (2) is for: a- Time to live b- IP protocol version number c- Type of service d- Header checksum e- Upper layer protocol f- None of above 3- Field (3) is for: a- Time to live b- IP protocol version number c- Type of service d- Header checksum e- 32 bit destination IP address f- None of them
UDP Echo ApplicationA UDP Echo program is a simple network application that demonstrates the basicprinciples of UDP communication. In this program, a server listens for incoming UDPpackets from clients, and when it receives a packet, it echoes (sends back) the samepacket to the client. The client sends a message to the server, and the server returns thesame message. It's often used for testing network connectivity and understanding thefundamentals of UDP communication. (Answer the following question using python) Implement both the server and client components of this UDP Echo program whileadhering to the features outlined below. Please ensure that your implementation followsgood coding practices and provides clear prompts and feedback to the user, making ituser-friendly and robust. Please refer to the class example to guide your implementation. 1) UDP Echo Server Receiving and Displaying Messages: The UDP Echo server should be able toreceive messages sent by clients. For each…
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?
Q10: Complete the frames (x & y) given below with appropriate port, IP and MAC addresses. The sender Host E has two applications running; one for email with port number 49254 and the other for accessing the web server with port number 52167. The frame x is intended for the BRACU Web server and frame y is coming from the Email Server. (MAC addresses are alphabets and IP addresses are numbers) Port 80 BRACU Web Frame x Server A/20 B/21 Frame X D. Mac Frame Y D. Mac Switch-PT Switcho C/22 S. MAC S. MAC BRACU G/51, Router F/25 Frame y Switch-P Switch1 D/23 D. IP D. IP ISP Router 1/91 H/52 E/24 Sender S. IP S. IP Hub-PT Hubo D. Port D. Port K/93 Port 25 Email Server 3/92 S. Port S. Port Data Data Trailer Trailer
CIS269 Packet Translation Lab Break down the following IP datagram into its individual fields, listing the value of each. Hint: It’s an IP datagram containing a TCP segment containing another protocol… 45 00 00 31 94 00 40 00 80 06 1B 9F 80 A3 C9 29 D8 45 29 15 04 09 00 15 00 00 C3 A1 DF 65 A8 45 50 18 20 AA 8E 8C 00 00 43 57 44 20 66 75 6E 0D 0A