Q$1.$ IP Spoofing $(10$ Marks$)$

Consider a FTP server S$,$ located inside an enterprise network that allows only a particular client A

belonging to the enterprise to download the files from the server. The FTP server does not allow any

client with the IP address other than the IP address of client A to connect. please solve c and d

$.$a$)$ How an adversary client B situated within the same network can use IP spoofing to establish a

connection with the server $S.$

b$)$ While using the IP Spoofing to establish a connection with the server, what are the challenges

that B may have to face?

c$)$ Give possible approaches that the client B can take to deal with the challenges identified by you

in part $($b$)$

b$)$ Discuss, what birthday paradox has got to do with IP spoofing attack in this scenario,?