Passive Port Change Issue

This is the FTP system settings?

gazzeg wrote:
I nee to change this to include port 22021 in the range as this is what my machines are using

Normally passive port ranges are set uniquely per server, so they can be forwarded through your router or firewall. So I don't get your reasoning here.

In any event, mine are set to a non-standard range, so changing them works for me.

What firmware are you using?

Hi,

I'm only going by what I can see on the traffic.

The situation is as follows:

We have hitting machines that communicate via FTP. These are setup with the username and password and have the home directory setup.

We were told we have to use Serv-U FTP software but this was proven not the case as I also used Filezilla FTP Server software OK.
I then got this Readynas 104 (Latest FW) and setup the FTP with the machine username and changed the port from 21 to 10021 (as this is what the machines communicated over)

Most of the machines can read and write ok to the Readynas 104 with out issues but there are two newer ones that cannot.

On looking at the logs and traffic on Filezilla I could see there was an additional port request for 22021 from them. As the Readynas was only on 10021 and the passive were set to a higher range this could not be answered. Thats my logic behind it.

So I tried then to change the Passive FTP ports to 22021 but I cannot use that port on there?

This is now where I'm at with it.

gazzeg wrote:
...On looking at the logs and traffic on Filezilla I could see there was an additional port request for 22021 from them. As the Readynas was only on 10021 and the passive were set to a higher range this could not be answered. Thats my logic behind it. So I tried then to change the Passive FTP ports to 22021 but I cannot use that port on there? This is now where I'm at with it.

The passive port numbers are sent over the control connection (10021 in your case), and the clients then try to create a connection back to the NAS using that passive port. If there is a firewall in front of the NAS, then the passive ports you pick need to be forwarded through that firewall. If not, then any passive ports will work. There's no reason why the passive ports need to have higher numbers than the control port.

So are these clients on the same network as the RN104, or are they connected over the internet.