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Cisco 350-701: Which topology supported when crypto ACLs are used

Question

When a site-to-site VPN is configured in Cisco FMC, which topology is supported when crypto ACLs are used instead of protected networks to define interesting traffic?

A. hub-and-spoke
B. full mesh
C. DMVPN
D. point-to-point

Answer

D. point-to-point

Explanation

The correct answer is D. point-to-point.

A site-to-site VPN is configured in Cisco FMC by creating a VPN topology that defines the endpoints, IKE parameters, IPsec parameters, and protected networks of the VPN tunnel. Protected networks are the subnets that are encrypted and decrypted by the VPN tunnel. However, in some cases, you may want to use crypto ACLs instead of protected networks to define the interesting traffic for the VPN tunnel. Crypto ACLs are access control lists that match the source and destination addresses of the traffic that should be protected by the VPN tunnel.

When you use crypto ACLs instead of protected networks, you can only configure a point-to-point topology for the site-to-site VPN. A point-to-point topology establishes a VPN tunnel between two endpoints. You cannot use crypto ACLs for hub-and-spoke, full mesh, or DMVPN topologies, because these topologies require multiple endpoints and protected networks.

The other options are incorrect because:

  • A. hub-and-spoke. This topology establishes a group of VPN tunnels connecting a hub endpoint to a group of spoke nodes. You cannot use crypto ACLs for this topology, because you need to specify the protected networks for each spoke node.
  • B. full mesh. This topology establishes a group of VPN tunnels among a set of endpoints. You cannot use crypto ACLs for this topology, because you need to specify the protected networks for each endpoint.
  • C. DMVPN. This is a dynamic multipoint VPN that allows multiple sites to communicate directly with each other over a shared network without requiring a permanent VPN tunnel between them. You cannot use crypto ACLs for this topology, because you need to specify the protected networks for each site.

Reference

Implementing and Operating Cisco Security Core Technologies 350-701 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Implementing and Operating Cisco Security Core Technologies 350-701 exam and earn Implementing and Operating Cisco Security Core Technologies 350-701 certification.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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