I have a Cisco ASA 5520. I need to configure port forwarding on the vpn tunnel. Eg. i have almost 100 L2L vpn tunnels. Any clients hitting my LAN ip 192.168.1.1 on port 21, my ASA should forward that port 21 traffic to 192.168.2.1. Is it possible on the VPN? Please let me the configuration. If that doesn't work, lemme know any you suggestions on this. Please note that, any other traffic if client is hitting 192.168.1.1:80 it should not forward.
172.16.1.1 (client) -----> 192.168.1.1:21 -----> 192.168.2.1:21