Dell's Secure Connect Gateway, which is integrated into Dell Unity XT, requires specific outbound firewall ports to be open to establish a connection with Dell's support infrastructure. Port 443 (HTTPS) is used for the primary secure communication channel for metadata and "heartbeat" signals. Port 8443 is required for large file transfers, such as sending log bundles or diagnostic data, to Dell Support. Both ports must be open for the service to be fully functional.

A. Port 80 (HTTP) is an insecure port and is not used for the Secure Connect Gateway's outbound connections, which are designed to be encrypted.

B. Port 9443 is not the standard port used by Secure Connect Gateway for file transfers; the correct port for this function is 8443.

D. Port 80 is insecure, and port 9443 is not the standard port used for the primary gateway connection or file transfers in this context.

1. Dell EMC Secure Connect Gateway 5.x — Virtual Edition Security Configuration Guide. Page 8

Table 2 "Ports that are required for secure connect gateway to function". This table explicitly lists TCP port 443 for "Global access and user interface" and TCP port 8443 for "File transfer" as required for outbound connections to Dell.

2. Dell Unity XT Series Unisphere Online Help (Version 5.3). Section: "Configuring Remote Support". The networking requirements section for setting up the integrated Secure Connect Gateway specifies the need for outbound access on ports 443 and 8443.