Download Cisco Packet Tracker from the list of tools and install it either in your computer or in a Windows virtual machine. Then, open the provided Cisco lab file lab$11.$pkt$\mathrm{.}1.$ Check all the configuration and take some time to identify all networks. A ping from any PC to the Web server does not work. Identify if the problem is the echo$-$request or the echo$-$reply and where the packets stop being routed$\mathrm{.}2.$ In ExtRouter, label the interfaces for NAT so that FastEthernet$0/1$ is the inside one and Serial$0/0/0$ is the outside one. Capture a screenshot of the commands sequence$\mathrm{.}3.$ Then, from the global configuration, execute the commands access$-$list $1$ permit PRIVATE$\_$NETWORK$\_$ID INVERSE$\_$NETWORK$\_$MASK and ip nat inside source list $1$ interface SERIAL$\_$INTERFACE overload $($substitute the parameters in capital letters by the corresponding value$)$ to create an access$-$control list and enable NAT for this ACL $.$ Capture a screenshot of the commands sequence$\mathrm{.}4.$ Ping the Web server from Office$1$ and capture a screenshot of the successful communication$\mathrm{.}5.$ Try again but use $-$n to send more than $20$ packets. While the ping command is running in Office$1,$ go to ExtRouter and execute show ip nat translations. What IP address is the Web server responding to$?6.$ Why there are so many entries if only one PC is sending outbound packets?$7.$ Why is NAT overload also called PAT?$8.$ You can see the NAT statistics. Execute the right command and capture a screenshot of it and the output.