4.3-2b. Network Address Translation (b). Consider the following scenario in which host 10.0.0.1communicating with an external web server at IP address 128.119.40.186. The NAT table showthe table entry associated with this TCP flow. What are the source and destination IP address aport numbers at point B?S:D:BS:DNAT translation tableWAN side addr138.76.29.7, 5051138.76.29.7(C)The source IP address is:The destination IP address is:The source port number is:The destination port number is:LAN side addr10.0.0.1, 202010.0.0.4SÄD:S:D:[Choose ][Choose]10.0.0.110.0.0.42020128.119.40.18680138.76.29.7505110.0.0.110.0.0.210.0.0.3

SOLUTION-Given that the,==>The host IP address 10.0.0.1==>NATed Router LAN side interface IP…

4.3-2b. Network Address Translation (b). Consider the following scenario in which host 10.0.0.1 communicating with an external web server at IP address 128.119.40.186. The NAT table show the table entry associated with this TCP flow. What are the source and destination IP address a port numbers at point B? NAT translation table WAN side addr 138.76.29.7, 5051 10.0.0.1, 2020 LAN side addr

4.3-2b. Network Address Translation (b). Consider the following scenario in which host 10.0.0.1 communicating with an external web server at IP address 128.119.40.186. The NAT table show the table entry associated with this TCP flow. What are the source and destination IP address a port numbers at point B? NAT translation table WAN side addr 138.76.29.7, 5051 10.0.0.1, 2020 LAN side addr

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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Suppose you have the following network requirements, for Given an IP address and mask of 9.0.0.0/8, design an IP addressing scheme using VLSM? How is the efficiency of this method achieved? Use the topology in Figure to answer the questions. a. Network 1 needs to support 330 host addresses. b. Network 2 needs to support 62 host addresses. c. Network 3 needs to support 2 host addresses. d. Network 4 needs to support 520 host addresses. e. Network 5 needs to support 230 host addresses. f. Network 6 needs to support 62 host addresses. g. Network 7 needs to support 2 host addresses. h. Network 8 needs to support 2 host addresses.
4.3-2c. Network Address Translation (c). Consider the following scenario in which host 10.0.0.1 is communicating with an external web server at IP address 128.119.40.186. The NAT table shows the table entry associated with this TCP flow. What are the source and destination IP address and port numbers at point C? OB S: B S: D: NAT translation table WAN side addr 138.76.29.7, 5051 138.76.29.7 The source IP address is: The destination IP address is: The source port number is: The destination port number is: LAN side addr 10.0.0.1, 2020 10.0.0.4 S D: S: D: [Choose ] [Choose ] 138.76.29.7 10.0.0.1 5051 10.0.0.4 80 2020 128.119.40.186 [Choose ] 10.0.0.1 10.0.0.2 10.0.0.3
2. Consider a classless inter domain routing (CIDR) for a given network PQR which requires the support of 700 hosts. There are three contiguous class C network address space that are assigned for the network 212.45.16.0, 212.45.17.0 and 212.45.18.0. Determine the following for the defined PQR network through Inter domain routing i. Network and Broadcast Address, Subnet Mask ii. Range of Valid IP addresses iii. Unique IP addresses used
List all the static routes on each of the 4 routers required for full communication across the topology. The addresses with question marks have been relabeled. I think each router should have 3 static routes. This is using the ip route command (ip route <netid> <net mask> <next hop>)
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In the above network diagram, IP and MAC addresses are given for network nodes. Suppose Host1 (Shahid) sends a datagram to Host2 (Khalid). What IP and MAC addresses (source and destination) will be written in IP and Data link layer headers respectively, for the following intermediate points from Host1 to Host2?a) Host1 to Router1 (R1)b) Router1 to Router2 (R2)c) Router2 to Host2
Consider a class C network with the subnet mask 255.255.255.41. How many network id (NID) and host id (HID) are there in the subnet mask? (A) 24,3 (B) 24, 5 (C) 20,6 (D) 20,8
6.3-2. Multiple Access protocols (b). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t = 0.3, 1.7, 1.8, 2.5, 4.2, 4.6. Each transmission requires exactly one time unit. t=0.0 U 3 U चं n 50 U t=1.0 60 23 t=2.0 For the slotted ALOHA protocol, indicate which packets are successfully transmitted. You can assume that if a packet experiences a collision, a node will not attempt a retransmission of that packet until sometime after t=5. t=3.0 5 t=4.0 6 t=5.0
5. In briefly. ?
please answer carefully
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6.3B-4. Multiple Access protocols (4). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t=0.1, 0.8, 1.35, 2.6, 3.9, 4.2. Each transmission requires exactly one time unit. t=0.0 1 U r 1 U 3 2 4 Again consider the CSMA protocol (without collision detection), indicate those packets where the channel is sensed busy and therefore, under CSMA, that message transmission is not attempted. [Again, you should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy and that that node will not attempt a retransmission of that packet until sometime after t=5. Hint: consider propagation times carefully here]. 5 2 3 a t=1.0 t=2.0 4 t=3.0 56 t=4.0 t=5.0