The **IP and MAC authorization** rules also create a similar binding in the SafeUTM [**DHCP server**](https://docs.safedns.com/books/45-setup-services/page/dhcp-server). However, if the same IP and MAC addresses will be used in the enabled rules of the DHCP server, then the DHCP server rules will be executed first.
To configure IP and MAC authorization, you must: 1. In section **Authorization -> IP and MAC authorization** click **Add**. 2. Create an **IP and MAC authorization binding rule:** [](https://docs.safedns.com/uploads/images/gallery/2022-08/ndHdfngwCyv36zM8-1-authorization-by-ip-and-mac-address.png)Set the flag **Permanently authorized** to provide unlimited internet connection even if the user is not active. The rules created in this section are reflected in the [**user card**](https://docs.safedns.com/books/42-setup-users/page/configuring-users). Find out more about user authorization only by IP address or MAC address in the articles [**Authorization by IP address**](https://docs.safedns.com/books/42-setup-users/page/authorization-by-ip-address) and [**Authorization by MAC address**](https://docs.safedns.com/books/42-setup-users/page/authorization-by-mac-address)