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How does Cisco Umbrella differentiate which policy to apply for incoming DNS requests?

Question

How does Cisco Umbrella differentiate which policy to apply for incoming DNS requests?

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Solution

Cisco Umbrella differentiates which policy to apply for incoming DNS requests based on the identity of the source of the request. Here's how it works:

  1. Identity Assignment: Each device, network, or user that is protected by Cisco Umbrella is assigned a unique identity. This could be an IP address for a network, a device ID for a roaming client, or a user ID for a specific user.

  2. Policy Creation: When creating policies in the Cisco Umbrella dashboard, you specify which identities the policy applies to. You can create different policies for different identities based on your security needs.

  3. DNS Request: When a DNS request is made, Cisco Umbrella checks the identity of the source of the request. This could be done through the IP address of the request, a unique device identifier embedded in the request using DNSCrypt (for roaming clients), or user authentication (for user-level policies).

  4. Policy Application: Based on the identity of the source, Cisco Umbrella applies the corresponding policy. This policy determines whether the DNS request is allowed or blocked.

So, by assigning unique identities to each source and creating corresponding policies, Cisco Umbrella can differentiate which policy to apply for each incoming DNS request.

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