As a workaround, use the instructions in the Cisco Umbrella Secure Internet Gateway (SIG) User Guide to create a rule to block traffic that could bypass the SSL decryption and content filtering policies.
Step 1: Follow the instructions in the Add a Web Destination List section to create destination lists to control identity access to websites.
Step 2: Follow the instructions in the Add a Ruleset to the Web Policy to create a ruleset.
Step 3: Follow the instructions in the Add Rules to a Ruleset section to create a Block rule.
- From the Rule Action drop-down list, choose Block.
- Under Destinations, click Add Destination and then click Destination Lists. From the drop-down menu, choose the destination lists that were created in Step 1.
While this workaround has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.