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 < <

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

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Similar questions

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: Points A, B, and C.
Consider the following scenario in which host 192.168.0.3 is communicating with an external web server at IP address 156.76.29.8. The NAT table shows the table entry associated with this TCP flow. 5: D: B S: D NAT translation table WAN side addr 135.17.00.5,7789 www.** 135.17.00.5 10 LAN side addr 192.168.0.3, 4010 ****** D: 5: D: 192.169.0.4 192.168.0.3 192.168.0.2 192.169.0.3 E. What are the source and destination IP address and port numbers at point A? F. What are the source and destination IP address and port numbers at point B? What are the source and destination IP address and port numbers at point C? H. What are the source and destination IP address and port numbers at point D? G.
Network Address Translation. 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 A? HF S: D: NAT translation table WAN side addr 138.76.29.7, 5051 138.76.29.7 10- 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 110.0.0.4 D: S: D: A 10.0.0.1 10.0.0.2 10.0.0.3 10.0.0.1 [Choose ] [Choose ] [Choose ]
Suppose within your web browser you click on a link to obtain a Web page. The IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary to obtain the IP address. Suppose that three DNS servers are visited before your host receives the IP address from DNS. The first DNS server visited is the local DNS cache, with an RTT delay of RTT = 4 msecs. The second and third DNS servers contacted have RTTs of 45 and 24 msecs, respectively. Initially, let's suppose that the Web page associated with the link contains exactly one object, consisting of a small amount of HTML text. Suppose the RTT between the local host and the Web server containing the object is RTTHTTP = 9 msecs. Assuming zero transmission time for the HTML object, how much time elapses from when the client clicks on the link until the client receives the object? (Do not forget the TCP handshake(s).) 82 msecs O 91 msecs O 46 msecs O 67 msecs
Consider a home network connected to the Internet through a single home router that supports the Network Address Translation (NAT) protocol. The ISP is only providing a single public IP address to the owner of this network (82.7.30.73). Let us assume that one of the connected home devices with IP address 192.168.0.1 has an open connection from source port 30000 to a web server with IP address 172.217.169.4. The source IP and port of the incoming TCP segments that the web server sees could be: 192.168.0.1, 30000 82.7.30.73, 5555 192.168.0.1, 5555 172.217.169.4, 80
2. Consider an HTTP client that wants to retrieve a Web document at a given URL. The IP address of the HTTP server is initially unknown. What transport and application-layer protocols besides HTTP are needed in this scenario? O TCP,UDP,DNS ТСР, DNS UDP,DNS ТСР, FTP
Let IP address 200.210.56.76/28 find the subnet mask, subnet id broadcast address and also find total number of subnet and total number of host in subnet. And explain Remote monitoring with neat diagram.
A IPV6 global unicast address is composed of a Global Routing prefix = 2001:0540:FACE, Subnet ID = 0020, and an interface id = 0000:0000:0000:0040. Assuming the IPV6 global unicast address follows the "3+1+4" Rule, which of the following is the correct IPV6 global unicast address representation? %3D %3D 2001:540:FACE:20:40/32 2001:540:FACE:20:40/64 2001:540:FACE::40:20/32 2001:540:FACE::40:20/64
The maximum transmission unit on an Ethernet link is 4500 bytes. This means that the IP packets sent over Ethernet cannot be larger than 4500 bytes including the IP header. Suppose the application layer sends a 6500-byte message. The transport layer uses TCP with no options. The network layer is using IP version 4. Obviously, the IP layer will have to fragment the data. Provide the length of new datagrams (after fragmentation). Provide the Flag and offset of each of the new datagrams.
Supposed the scenario bellow, we have 3 networks to be submitted with the ip address 10.10.0.0/16. Network 1 has 127 host, network 2 has 100 and network 3 has 7 host. VLSM . Decompose the given ip address to these networks using VLSM, and fill the table attached with the PKA by the correspond ip addresses Prefix 1rst ip Last ip Network host Based ip address Subnet mask Broadcast address address address N1: 127 N2:100 N3: 7
VLSM Create a IP Address scheme using VLSM. You are told to create the following 8 subnets using 10.10.0.0/22. 8. Network H has 59 hosts Complete all the fields in the following table. Make sure to show your work. Network Subnet Netmask CIDR Broadcast Address A B C D E 1. Network A has 50 hosts 2. Network B has 90 hosts 3. Network C has 36 hosts 4. Network D has 190 hosts 5. Network E has 15 hosts 6. Network F has 20 hosts 7. Network G has 100 hosts FGH Number of Hosts
B. Suppose within your Web browser you click on a link to obtain a Web page. The IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary to obtain the IP address. Suppose that two DNS servers are visited before your host receives the IP address from DNS. The first DNS server visited is the local DNS cache, with an RTT delay of RTTO = 5 msecs. The second DNS server contacted has an RTT of 8 msecs. Initially, let's suppose that the Web page associated with the link contains exactly one object, consisting of a small amount of HTML text. Suppose the RTT between the local host and the Web server containing the object is RTTHTTP=63 msecs. 1. Assuming zero transmission time for the HTML object, how much time elapses from when the client clicks on the link until the client receives the object? 2. Suppose the HTML object references 4 very small objects on the same web server. Neglecting transmission times, how much time elapses from when the client…