Firstly, please start up the IGT-90x/90xT Web User Interface and press Security feature link then create a new TCP/UDP Filter policy.
Next, if there is no any TCP/UDP policy of your IGT-90x/90xT so far, please fill out “1” to Group ID field and then configure as following one by one as the figure below: Action to Deny and Egress Port to TP then choose TCP to Any and fill out Port as 8080 at L4 Protocol field then press Add button.