The “No Internet” Policy is a built-in Policy that is designed to allow no DNS queries to resolve when it is applied, effectively blocking all traffic that requires DNS. Furthermore, DNS-less traffic is disallowed.
When the “No Internet” Policy is used in a schedule, it works as expected in that blocking is effective as per your schedule for all new requests. Pre-existing TCP sessions prior to the scheduled change, such as a Steam game may or may not be disconnected according to this reference:
| Transition to “No Internet” | Blocked by DNS | Pre-existing TCP connection termination |
|---|---|---|
| ASUS | Supported | Not Supported |
| pfSense 2.3, 2.4 | Supported | Not Supported (support coming soon) |