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Gateway locations

DNS locations are a collection of DNS endpoints which can be mapped to physical entities such as offices, homes, or data centers.

The fastest way to start filtering DNS queries from a location is by changing the DNS resolvers at the router.

Add a DNS location

To add a DNS location to Gateway:

  1. In Zero Trust ↗, go to Gateway > DNS Locations.
  2. Select Add a location.
  3. Choose a name for your DNS location.
  4. Choose at least one DNS endpoint to resolve your organization's DNS queries.
  5. (Optional) Toggle the following settings:
    • Enable EDNS client subnet sends a user's IP geolocation to authoritative DNS nameservers. EDNS Client Subnet (ECS) helps reduce latency by routing the user to the closest origin server. Cloudflare enables EDNS in a privacy preserving way by not sending the user's exact IP address but rather the first /24 range of the larger range that contains their IP address. This /24 range will share the same geographic location as the user's exact IP address.
    • Set as Default DNS Location sets this location as the default DoH endpoint for DNS queries.
  6. Select Continue.
  7. (Optional) Turn on source IP filtering for your configured endpoints, then add any source IPv4/IPv6 addresses to validate.
    • Endpoint authentication is required for standard IPv4 addresses and optional for dedicated IPv4 addresses.
    • DoH endpoint filtering & authentication lets you restrict DNS resolution to only valid identities or user tokens in addition to IPv4/IPv6 addresses.
  8. Select Continue.
  9. Review the settings for your DNS location, then choose Done.