Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate,...

Cisco 300-820 Question Answer

Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing “TLS negotiation failure”. What is causing this issue?

The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E,

which is not a SAN entry in the Expressway-E certificate

The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

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Cisco 300-820 Summary

Vendor: Cisco
Product: 300-820
Update on: Jul 27, 2025
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Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate,...

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