Step 3 – Change Your DNS Server Addresses
Before you change your DNS settings to use Secure Access, record the current DNS server addresses or settings (for example, write them down on a piece of paper). Retain a copy of these DNS settings in case you need to revert to them at a later date.
Some ISPs hard-code their DNS servers into the equipment they provide. If you are using such a device, you can not configure it to use Secure Access. Instead, you can configure each of your computers by installing the Cisco Secure Client or configuring the DNS server addresses on each computer. For more information about configuring a Windows, macOS, or Linux computer, see Computer Configuration.
The process for changing your DNS settings varies according to the operating system and version (Windows, Mac, or Linux) or the device (DNS server, router, or mobile device). This procedure might not apply to your OS, router, or device. For authoritative information, see the vendor documentation.
To change your settings on a typical router:
- In your browser, enter the IP address to access the router's user interface and enter your password.
- Find the area of configuration in which DNS server settings are specified and replace those addresses with the Cisco Secure Access IP addresses.
| IPv4 | IPv6 |
|---|---|
| 208.67.222.222 | 2620:119:35::35 |
| 208.67.220.220 | 2620:119:53::53 |