I have created a internal zone IP address I want to use as generic for FTP communications 192.168.1.9.
I want to NAT this IP to our current FTP server 192.168.1.19. This way when our FTP server changes we just change our NAT rule rather than the rest of our partner companies firewalls, routes, etc.
I've created a DNAT rule and able to ping 192.168.1.9 and get a response from 192.168.1.19, but unable to connect via ftp.
I've done this before successfully between network zones (subnets) but not on the same zone (subnet) so far.
For it to work from outside you need:
From zone - Untrust
To zone - Untrust
Destination Address - 18.104.22.168
Service - create new tcp-21 with protocol tcp and port 21
Destination translation - 192.168.32.19
NB! Place this new wan rule above WebServer1 rule because otherwise WebServer1 will NAT all ports to 192.168.1.9
Wow, thanks Raido!
I starting to get it. I need to spend more time in wireshark to understand it better.
Thank you so much for your responses. Creating this internal "VIP" will help in communicating a long term IP to our IPSec VPN connections that will allow us to change servers and IPs without the need to have our partners update their rules, etc.
Final NAT rules.
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