I need answer to question 3 please. Client #2 IP 160.16.0.11 MAC 00:01:02:03:04:

Question

I need answer to question 3 please.

Client #2 IP 160.16.0.11 MAC 00:01:02:03:04:06 Client #3 IP 160.16.0.10 MAC 00:01:02:03:04:07 Web Server IP 160.16.0.105 MAC 00:01:02:03:04:33 MAC 00:01:02:03:04:22 Interface Fa00 IP 160.16.0.14 Interface Fa0/1 IP 160.16.0.98 MAC 00:01:02:03:04:44 MAC 01:02:03:04:11 Fa0 Fa1 IP Router Ethernet Hub Ethernet Hub Ethernet Switch Refer to the network figure above for question 1 to question 4 below, by all devices on all interfaces is 255.255.255.240 The Subnet Mask used 1. (4 points) This network contains 2 IP subnets, separated by the router. The Subnet ID for the left subnet (containing Client #1) is 160.16.0.0/28. What is the Subnet ID for the right subnet (containing the Web Server)? Assume that Client #1 successfully pings to Client #3 a) 2. (4 points) After this ping is completed, what values will be in the ARP table on Client #1? Each entry in the ARP table has 2 values: IP Address and Hardware (MAC) Address, as shown below. Show the specific values from the diagram. Client #1 ARP Table IP Address b) (4 points) After this ping is completed, what values would be in the Forwarding Table of the Ethernet Switch? Each entry in the Switch Forwarding table has 2 values: the name of a Switch Interface (port) and the associated MAC Address, as shown belovw Show the specific values from the diagram. Switch Forwarding Table ame ess 3. Assume that Client #2 has already exchanged many packets with the Web Server, and now Client #2 transmits an HTTP Request packet (containing a request for a web page) to the Web Server. What are the specific numeric values that will be in each of the following header fields of this HTTP Request packet, when sent by Client #2? a) (3 points) Source Address in Ethernet header b) (3 points) Destination Address in Ethernet header c) (3 points) Source Address in IP header d) (3 points) Destination Address in IP header TDC 365 HW #1

Explanation / Answer

Writing answer only for question3 since that was the one asked.

3.

Since Client #2 has already exchanged many packets with the WebServer, it already knew that it these packets go through the router (gateway). So, it uses the router's MAC address as the destination address in the Ethernet Header, while the source address will continue to be the Client #2's MAC address.

So,

(a) Source address in ethernet header = MAC address of Client #2 = 00:01:02:03:04:06

(b) Destination address in ethernet header = MAC address of the router = 00:01:02:03:04:44

(c) IP Address in the source header will be the IP address of Client #2 = 160.16.0.11

(d) IP Address in the destination header will be the IP address of the Web Server = 160.16.0.105

In this case, the router will identify that the packet with this destination IP belongs to a different network and routes it accordingly based on its routing table.

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