--- title: "Set Up DNS" slug: "setting-up-dns" tags: ["DNS", "sensor control ", "setting up", "Assurance Sensor Control"] updated: 2026-07-07T13:33:37Z published: 2025-07-31T19:04:59Z canonical: "docs.crossworkassurance.cisco.com/setting-up-dns" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.crossworkassurance.cisco.com/llms.txt > Use this file to discover all available pages before exploring further. # Set Up DNS You can use DHCP to automatically configure the IP parameters of a Cisco® Crosswork Assurance Sensor Control. When the Sensor Control uses DHCP, it can be configured to obtain its DNS settings via DHCP. If the Sensor Control does not use DHCP, you can manually specify the address for each DNS server. **Note**: Two DNS servers can be used for redundancy. **▶ To use DHCP to specify the address of DNS servers** 1. Access the page **System ▶ Configuration ▶ DNS**. 2. Enable the **Use DHCP Results** box. 3. Use **From Interface** to select the interface from which to obtain DHCP information. For more information on specific parameters, refer to the table DNS Parameters (System ▶ Configuration ▶ DNS). **▶ To manually specify the address of DNS servers** 1. Access the page **System ▶ Configuration ▶ DNS**. 2. Remove the check mark from the **Use DHCP results** box. 3. Manually specify the address of DNS server 1 and DNS server 2 (if required). 4. Specify the **Domain**, then click **Apply**. For more information on specific parameters, refer to the table DNS Parameters (**System ▶ Configuration ▶ DNS**). **© 2026 Cisco and/or its affiliates. All rights reserved.** For more information about trademarks, please visit: [Cisco trademarks](https://www.cisco.com/c/en/us/about/legal/trademarks.html)[](https://www.cisco.com/c/en/us/about/legal/trademarks.html) For more information about legal terms, please visit: [Cisco legal terms](https://www.cisco.com/c/en/us/about/legal/terms-conditions.html)