I'm not sure how the negotiation works, but I did a network capture and
transferred a file a few times using WRQ Fast File Transfer; the only ports
consistently in use were 23 (Telnet) and 30767.  I suspect the latter was
being used for file transfer.

Maybe this is a useful data point, maybe not.

-Rob

On Tue, May 16, 2023 at 6:08 AM Craig Lalley <
[log in to unmask]> wrote:

> Everyone,
> I am struggling with Attachmate(WRQ) Reflection documentation.    I am
> looking for the ports that need to be open for Fast File Transfer or any
> documentation on how Fast File Transfers work.
> Memory tells me VT-MGR requires port 1537 and Fast File Transfer requires
> 1570, but my memory is fading.
> Can someone please explain to me how fast file transfer negotiations work?
>
> TIA,
>
> -Craig
>
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