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What ports does Starlink block?


While receiving a public IP address, the following ports are blocked:

Port Direction of Blocking Common Port Use
0 Both Outbound and Inbound Reserved
17 Inbound Quote of the Day (QOTD)
19 Inbound Character Generator Protocol (CHARDEN)
25 Outbound
67 Both Outbound and Inbound DHCP
135 to 139 Both Outbound and Inbound NetBios
445 Outbound SMB
520 Inbound RIP
546 to 547 Both Outbound and Inbound DHCPv6
1900 Inbound SSDP
11211 Inbound Memcached

Related questions:

What IP address does Starlink provide?


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