Cannot port forward: "not a valid redirect target port. It must be a port alias or integer between 1 and 65535"

[FreddyH]

“The following input errors were detected: is not a valid redirect target port. It must be a port alias or integer between 1 and 65535”

I did internet searches and didn’t find a lot on this error .

The selections made under NAT/Port Forward/Edit; the rest left at pfsense default

• Interface: WAN
• Protocol: TCP
• Destination: WAN
• Destination port range: 443
• Redirect target IP: 192.168.2.100

Background

• pfsense router (version 2.4.3-RELEASE-p1 (amd64) ) with PIA VPN
• webserver (192.168.2.100) that I want to port forward is in jail on freebsd host (192.168.2.50); each have separate IP addresses
• the webserver works on LAN; I can access it via linux machine on LAN and it connects to internet as I have been installing apps from internet; the host can ping internet
• the webserver has port port 443 connected and is listening on it
• the route for webserver out to internet is:
  - from jail on freebsd box
  - to tp-link managed switch
  - to pfsense router via WAN (as default gateway) through to VPN
  - to ISP CPE

I tried the following:

• read the pfsense docs: https://www.netgate.com/docs/pfsense/nat/forwarding-ports-with-pfsense.html

• checked out some basic pfsense guides/youtube videos on portforwarding just make sure I didn’t miss anything eg. https://www.youtube.com/watch?v=3-DU47zDrQk

• Did the troubleshooting with https://www.netgate.com/docs/pfsense/nat/port-forward-troubleshooting.html

• checked ports listening and connected on pfsense diagnostics – port 443 is active for various Ips on LAN

• firewall not enabled on webserver at the moment

• tried using the WAN and VPN gateway as a setting but still same result

• ISP is not blocking the port being forwarded

• the pfsense router is the way out to internet; nothing else in between; no captive portal employed

• no floating rules or interface groups applied on pfsense router

• WAN firewall rules do not have a gateway set

• Upnp service is not activated on pfsense box

• tested port 443 with “Test Port” on pfsens diagnostics –
  it passes the test when i go to server on internet eg. pfsense.org;
  it passes the test when i go to the pfsense router IP address and the switch IP address
  the test fails when I go to any other machine on the LAN

Is it perhaps a firewall rule that would cause that error?
What am I missing?

[Gertjan]

@freddyh said in Cannot port forward: "not a valid redirect target port. It must be a port alias or integer between 1 and 65535":

The selections made under NAT/Port Forward/Edit; the rest left at pfsense default

Interface: WAN
Protocol: TCP
Destination: WAN
Destination port range: 443
Redirect target IP: 192.168.2.100

Strange, your are omitting the "Redirect target port" field.
It should be

Redirect target port : 443

en then pfSense will accept your NAT rules :

[FreddyH]

@gertjan said in Cannot port forward: "not a valid redirect target port. It must be a port alias or integer between 1 and 65535":

@freddyh said in Cannot port forward: "not a valid redirect target port. It must be a port alias or integer between 1 and 65535":

The selections made under NAT/Port Forward/Edit; the rest left at pfsense default

Interface: WAN
Protocol: TCP
Destination: WAN
Destination port range: 443
Redirect target IP: 192.168.2.100

Strange, your are omitting the "Redirect target port" field.
It should be

Redirect target port : 443

en then pfSense will accept your NAT rules :

Gertjan

Thanks so much. Problem solved. Its the small things that are overlooked.
Its been a crap day solving problems that I didnt even see that one.

Appreciated!