Create a dynamic zone
Create a dynamic zone that defines network perimeters by location, IP type, and autonomous system number (ASN). You can use dynamic zones in policies to restrict authentication or enforce a higher level of assurance.
In the Admin Console, go to .
- In the Add Zone dropdown, select Dynamic Zone.
- In the Zone Name field, enter a name for the zone.
- Optional. Select Block access from IPs matching conditions listed in this zone to prevent matching IPs from accessing Okta. This includes IP addresses that appear in IP chains.
- In IP Type, define a proxy type or leave this option cleared to ignore any proxy.
Any: Ignores all proxy types. Define at least one of the following items: Locations, ISP ASNs.
Any proxy: Considers clients that use a Tor anonymizer proxy or a non-Tor anonymizer proxy type.
Tor anonymizer proxy: Considers clients that use a Tor anonymizer proxy.
Not Tor anonymizer proxy: Considers clients that use non-Tor proxy types.
- In Locations, add up to 75 locations by selecting the correct region name from the list.
Optional. Select State/Region for the selected location.
Optional. For China region codes, browse for any entries that display a regional character code for China instead of the region name. For example, CN-33.
- In ISP ASNs, add up to 75 ASNs separated by either a comma or new line.
In ISP ASNs, use the ASN lookup tool to retrieve the ASN.
Enter the ASN to include it as part of the dynamic zone.
To blocklist ASNs, select the Block access from IPs matching conditions listed in this zone option.
- Click Save.
The accuracy of Tor proxy detection depends on a third-party vendor, which is used to identify IP addresses that use Tor. The proxy type is only used to evaluate if a proxy is Tor or not. If a proxy is cleared, it isn't evaluated.