A.source ip address:192.168.15.5 destination port:21
B.source ip address:192.168.15.37 destination port:21
C.ssource ip address192.168.15.41 destination port:21
D.source ip address:192.168.15.36 destination port:23
E.source ip address:192.168.15.46 destination port:23
F.source ip address:192.168.15.49 destination port:23