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CC-SG uses several ports for internal functions, and its local firewall function blocks access to these ports. However, some external scanners may detect these as “blocked” or “filtered.” External access to these ports is not required and can be further blocked. The ports currently in use are:
In addition to these ports, CC-SG may use TCP and UDP ports in the 32xxx (or higher) range. External access to these ports is not required and can be blocked.