Application Notes : FOXMAN-UN in Firewalled Environment - Application Note : Purpose and Scope : FOXMAN-UN Server - FOX51x Communication
Hitachi Energy
FOXMAN-UN Server - FOX51x Communication
The FOXMAN-UN Server communication to the FOX51x network is based on
• FTP connections from FOXMAN-UN to the FTP port 21 and Telnet port 23 on the FOX51x (COBUX) side,
• FTP connection from FOX51x to the FOXMAN-UN Server on ports that cannot be reasonably narrowed down. You therefore need a stateful firewall and allow the FTP protocol for such connections, independent of the port.
• For UDP notifications from the FOX51x to the FOXMAN-UN Server, a firewall rule needs to created to pass such requests.