The following prerequisites must be met in order to use the Cisco Umbrella roaming client successfully. Ensure that prerequisites are met to avoid conflicts and potential problems.
Supported Devices and Operating Systems
- Chrome OS devices, such as Chromebook, running version 55 or newer.
Unsupported Devices and Operating Systems
- Chrome browser on OS X, Windows, and Linux.
- Devices running variations or third-party distributions of Chrome OS, such as neverware CloudReady.
Networking Requirements
The Cisco Umbrella Chromebook client uses the following ports:
Port and Protocol
Source / Destination
Notes
53 (TCP + UDP)
208.67.222.222/32,
208.67.220.220/32
Used for EDNS Queries
443 (TCP)
registration.polaris.qq.opendns.com
HTTPS - Used for registration
In the DHCP server, configure the Cisco Umbrella IP addresses (208.67.222.222 and 208.67.220.220) as the DNS nameserver addresses for all Chromebooks. Communication to these addresses must be allowed on Port 53 in all applicable firewalls and other security perimeter devices in use in your networks.
Introduction < Prerequisites > G-Suite Identity Services