I am on a project in which the client and the gateway have a firewall between them. I can’t seem to find the ports that the client uses to speak with the gateway. Is this documented somewhere?
you can find it on the gateway control utility
if you are using ssl you will need to open both the standard port and the ssl port. Or at least that was true in 7.5.
default ports are 8088 for standard and 443 for ssl.
So, when the client wants to get OPC tags, it goes through the 8443 (or whatever ignition is using for SSL), and if it wants to get an image from the image repository, same deal? There’s no RMI or similar technologies involved, it’s all HTTP(S) though standard (i.e. configured but commonly used for the gateway website) ports?
yes.