We are working with a vendor and have installed a program that needs to be able to talk to their server and have the server talk back. To do this, I need to open port 5223 on our firewall and allow the vendors IP access on 5223 to an entire subnet 10.1.20.0/24.
I created an access rule in the ASA (from the GUI as that's what I am familair with) with the Source of the Vendors IP on the Outside Interface and a destination of the 10.1.20.0/24 network and a service of TCP 5223. I must either have this wrong or be missing something because it is not working. If I run the packet tracer it says the packet is dropped. Any help?