This lab is about 22.214.171.124 Packet Tracer – Examine the ARP Table. In this tutorial we will discuss about 126.96.36.199 lab answers, in last tutorial we discuss about Introduction to 188.8.131.52 Packet Tracer – Identify MAC and IP Addresses.
184.108.40.206 Packet Tracer answer
Here we have topology of 220.127.116.11 Packet Tracer – Examine the ARP Table. Equipment’s which we required are as follows
- 2 Routers
- 2 switches
- 1 Access Point (AP)
- 3 PC’s
- 2 Laptop’s
Addressing table of 18.104.22.168 Packet Tracer lab is follows.
22.214.171.124 Packet tracer Lab objectives
We have few objectives of this lab which we have to do.
Examine an ARP request
Generate ARP requests by pinging 172.16.31.3 from 172.16.31.2
- Click 172.16.31.2 and open the Command Prompt.
- Enter the arp –d command to clear the ARP table.
- Enter Simulation mode enter the command ping 172.16.31.3. Two PDUs will be generated. The ping command cannot complete the ICMP packet without knowing the MAC address of the destination. So the computer sends an ARP broadcast frame to find the MAC address of the destination.
- Click Capture/Forward once. The ARP PDU moves Switch1 while ICMP PDU disappears, Waiting for the ARP reply. Open the PDU and record the destination MAC address. Yes the MAC address is listed on above table.
- Click Capture/Forward, switch1 makes 2 PDU copy.
- 16.31.3 will accepted the PDU.
Examine the ARP table
- The Source and Destination MAC addresses are 000C.85CC.1DA7 >> 0060.7036.2849
- switch1 makes 5 PDU copy
- Yes the MAC addresses of the source and destination align with their IP addresses.
- Switch back to the RealTime and the ping completes.
- Click 172.16.31.2 and enter the arp –a command. It will show IP address: 172.16.31.3 MAC address: 0060.7036.2849.
- When does an end device issue an ARP request? When it doesn’t know the destination MAC address
Examine a switch MAC address Table
Step 1: Generate additional traffic to populate the switch MAC
- From 172.16.31.2, enter the ping 172.16.31.4 command.
- Click 10.10.10.2 and open the Command Prompt.
- Enter the ping 10.10.10.3 command. How many replies were sent and received? 4 Replies send and 4 Received.
Step 2: Examine the MAC address table on the switches.
- Click Switch1 and then the CLI tab. Enter the show mac-address-table command. Do the entries correspond to those in the table above? Yes the entries correspond to those in the table above.
- Click Switch0, then the CLI tab. Enter the show mac-address-table command. Do the entries correspond to those in the table above? Yes the entries correspond to those in the table above.
- Why are two MAC addresses associated with one port? Because both devices connect to one port through the Access Point.
Examine the ARP Process in Remote Communications
- Generate traffic to produce ARP traffic.
- Click 16.31.2 and open the Command Prompt.
- Enter the ping 10.10.10.1
- Type arp –a. What is the IP address of the new ARP table entry? 172.16.31.1 Enter arp -d to clear the ARP table and switch to Simulation
- Repeat the ping to 10.10.10.1. How many PDUs appear? 2
- Click Capture/Forward. Click the PDU that is now at What is the target destination IP destination address of the ARP request? 172.16.31.1
- The destination IP address is not 10.10.10.1. Why? The gateway address of the router interface is stored
Examine the ARP table on Router1
- Switch to Realtime mode. Click Router1 and then the CLI tab.
- Enter privileged EXEC mode and then the show mac- address-table Command. How many MAC addresses are in the table? Why?
None. The router routes using ip addresses, while the switch will route using the MACs within the network
- Enter the show arp Command. Is there an entry for 172.16.31.2? yes
- What happens to the first ping in a situation where the router responds to the ARP request? It is lost to fill the ARP table.
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