Cisco SD-WAN Umbrella SIG Integration via IPsec Tunnel

300-415 By islever Editorial Last updated

Describe Cloud security integration

Short answer

B An IPsec tunnel delivers traffic to the Cisco Umbrella SIG cloud from a Cisco SD-WAN domain.

Question

Which feature delivers traffic to the Cisco Umbrella SIG cloud from a Cisco SD-WAN domain?
  1. L2TPv3 tunnel
  2. IPsec tunnel Correct Answer
  3. local umbrella agent
  4. source NAT

Key Takeaways

Tests the understanding that Umbrella SIG integration in SD-WAN uses IPsec tunnels, not local agents or L2TP.

Learn how Cisco SD-WAN connects to the Umbrella Secure Internet Gateway using an IPsec tunnel for secure traffic delivery.

Common mistake: Choosing 'local umbrella agent' because some older or non-SD-WAN deployments use agents, but SD-WAN edges terminate IPsec directly.

Expert Analysis

The question asks for the specific mechanism used to transport traffic from a Cisco SD-WAN domain to the Cisco Umbrella Secure Internet Gateway (SIG). According to Cisco's official documentation and integration architecture, the connection between the SD-WAN Edge device and the Umbrella SIG is established using an IPsec tunnel. This tunnel provides the necessary encryption and secure transport for traffic destined to the Umbrella cloud services.

While one might consider other options, they are incorrect for this specific purpose. A local umbrella agent (Option C) refers to software running on endpoints or potentially on-premises gateways in non-SD-WAN contexts, but the standard SD-WAN integration relies on the edge router itself terminating the IPsec session directly to the Umbrella cloud, without requiring a local agent process on the router. L2TPv3 (Option A) is typically used for Layer 2 transport or specific legacy integrations, not for securing traffic to Umbrella SIG. Source NAT (Option D) is a general network function that may be applied to traffic exiting the WAN edge, but it is not the feature that 'delivers' or establishes the secure path to the Umbrella SIG; it merely modifies packet headers.

This knowledge point falls under security integration features. Understanding that IPsec is the transport protocol for Umbrella SIG is critical because it distinguishes how SD-WAN handles external security services compared to traditional branch routers that might use agents or different tunneling protocols. If the scenario involved direct internet access with Umbrella as a DNS redirection service rather than a gateway, the configuration might differ, but for SIG integration, IPsec is the definitive answer.

Official Reference

https://www.cisco.com/c/en/us/support/docs/routers/sd-wan/217562-configure-umbrella-sig-tunneles-on-activ.html

This link opens the official vendor documentation in a new tab.

Exam Strategy

When reviewing security integrations, always identify the transport protocol specified by the vendor for cloud services. For Cisco Umbrella SIG, remember that the SD-WAN edge acts as the IPsec endpoint, eliminating the need for local agents. Focus on distinguishing between transport mechanisms (IPsec vs. GRE vs. L2TP) and deployment models (cloud-native vs. agent-based).

Frequently Asked Questions

Does Cisco SD-WAN require a local Umbrella agent for SIG integration?

No, the SD-WAN Edge router terminates the IPsec tunnel directly to the Umbrella SIG cloud. No local agent software is required on the router.

What type of tunnel is used for Cisco Umbrella SIG in SD-WAN?

An IPsec tunnel is used to securely transport traffic from the SD-WAN Edge to the Umbrella Secure Internet Gateway.

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Community Votes

B
100%

100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 4 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 4

  1. NetArch_Teck 👍 2
    The Cisco Secure Internet Gateway relies on tunnels, more specifically IPSec tunnels from a WAN edge device to communicate to the Cisco Umbrella Secure Internet Gateway (SIG) Option [B] is the correct answer Cisco Link Ref:- https://www.cisco.com/c/en/us/support/docs/routers/sd-wan/217562-configure-umbrella-sig-tunneles-on-activ.html#toc-hId-1250395120
  2. Rosh8787 👍 1
    Option B is the correct answer.
  3. delulu10 👍 1 Answered B
    B is GOAT
  4. thomazmr 👍 1 Answered B
    Correct B

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