Hi Warren,
We also have a similar situation, this not limited to FTP adapter, it is there on Email and SQL adapter as well, where you don't get an option on the config to choose the local interface (VIP in this).
I think the short term solution we have been suggested from Intersystems is to allow both your mirror member IP addresses through the firewall, yet to test it though how it will play out with NAT.
Probably, Intersystems will come up with a solution maybe in next couple of months to support this configuration of local interface natively on the adapter classes.
Thanks,
Deepak Ghansala
Good to know what is happening behind the scenes, great work guys @Eduard Lebedyuk @Regilo Regilio Guedes de Souza
Refer to this documentation
https://docs.intersystems.com/iris20201/csp/docbook/DocBook.UI.Page.cls?...