I updated about 1 month ago this version but now the latest version to download on the website is ER605(UN)_V2_2.1.2 Build 20230210 https://www.tp-link.com/us/support/download/er605/v2/#Firmware What

I currently have an AT&T BGW-320 I am using in IP passthrough mode to my ER605. I am wondering if I can configure this to use a block of 5 static IPs from AT&T. I really need to use more IP+ports comb