If you need to restrict traffic from reaching certain instances, create rules that allow traffic to the other instances, then remove the firewall rule that allowed traffic to all of the instances. For all networks except the default network, you must create any firewall rules you need.įirewall rules are only "allow" rules. No manually created network of any type has automatically created firewall rules. The default network has automatically created firewall rules, which are shown below. Each network has its own firewall controlling access to the instances.Īll traffic to instances, even from other instances, is blocked by the firewall unless firewall rules are created to allow it.
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