4.3-2b. Network Address Translation (b). 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 B?### Diagram Explanation:**NAT Translation Table:**- **WAN side address:** 138.76.29.7, 5051- **LAN side address:** 10.0.0.1, 2020### Diagram Details:- **Host IPs:** - 10.0.0.1 - 10.0.0.2 - 10.0.0.3- **Router Interface IP:** - 10.0.0.4The diagram shows a network where three hosts (10.0.0.1, 10.0.0.2, 10.0.0.3) are connected to a router using the IP address 10.0.0.4. The router is connected to the external internet at IP address 138.76.29.7.Communication flows:- **Point A:** - Source (S): 10.0.0.1 - Destination (D): 10.0.0.4- **Point B:** - Source (S): 138.76.29.7 - Destination (D): 128.119.40.186- **Point C:** - Source (S): 128.119.40.186 - Destination (D): 138.76.29.7- **Point D:** - Source (S): 10.0.0.1 - Destination (D): 10.0.0.4### Questions:- **The source IP address is:** [ Choose ]- **The destination IP address is:** [ Choose ]- **The source port number is:** [ Choose ]- **The destination port number is:** [ Choose ]

The NAT translation table entry you provided indicates that there is a translation between a WAN…

4.3-2b. Network Address Translation (b). 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 B? S: D: 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 ] [Choose ] [Choose ] 10.0.0.1 10.0.0.2 10.0.0.3 < <

4.3-2b. Network Address Translation (b). 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 B? S: D: 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 ] [Choose ] [Choose ] 10.0.0.1 10.0.0.2 10.0.0.3 < <

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

See similar textbooks

Similar questions

please look at the two pics and answer please
Design a LAN IP address by using the subnet 192.168.12.0/24, where G is your group number. You also need to use Variable Length Subnet Mask (VLSM) technique whilst creating the subnets and allow 5% for possible future expansion (8 points)
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.
Exercise 5.2.6 Use your textbook and the Internet to determine the communication steps in an ARP Request and Response. What steps are involved and how is each message sent ( broadcast to all devices or unicast to a single device)? 1. Based on the interface and the forwarding IP address, ARP consults the appropriate ARP cache for an entry for the forwarding IP address. If an entry is found, ARP skips to step 6. 2. If the entry is not found, ARP builds an ARP Request frame containing the MAC address of the interface sending the ARP Request, the IP address of the interface sending the ARP Request, and the forwarding IP address. ARP then broadcasts the ARP Request using the appropriate interface. 3. All hosts receive the broadcasted frame and the ARP Request is processed. If the receiving host's IP address matches the requested IP address (the forwarding IP address), its ARP cache is updated with the address mapping of the sender of the ARP Request. If the receiving host's IP address does…
3
An IP address can be written as a 32-bit number. For a class B network, the two most significant bits are set to 10. The 16 most significant bits are used as a network ID, and the 16 least significant bits are used as a host ID. However, the host ID cannot be all O's or all 1's. How many hosts (i.e., host IDs) can there be on a class B network? Type your answer.
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
Consider the LAN below consisting of 12 computers (A-L) connected by two Ethernet bridges. At t=0 the bridging table entries for both bridges are empty. At t = 1, node L sends to node E, and node E replies immediately (well before the next time step). What are the (MAC address, interface) entries in the bridging tables right after these transmissions? Note: interface = port number a) Left-hand-side bridge: (L,15), (E, 8). Right-hand-side bridge: (L,7), (E, 5). b) Left-hand-side bridge: (L,8), (E, 8). Right-hand-side bridge: (L,7), (E, 7). c) Left-hand-side bridge: (L,15), (E,5). Right-hand-side bridge: (L,7), (E, 8). d) Left-hand-side bridge: (L,8), (E,8). Right-hand-side bridge: (L,7), (E, 7).
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>)
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
Design a LAN IP addresses by using the subnet 192.168.12.0/24, where G is your group number. You also need to use Variable Length Subnet Mask (VLSM) technique whilst creating the subnets and allow 5% for possible future expansion
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