TFTP Service in Multicluster Deployment with Firewalls - Fixing the Issue

Fixing the Issue: Centralized TFTP Service Not Serving Files

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Question

In a multicluster deployment model, a customer is using centralized TFTP service.

Firewalls are being implemented between each of the clusters.

After the installation of the firewalls, the centralized TFTP stopped serving files.

What must be changed on the firewalls to fix this issue?

Answers

Explanations

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A. B. C. D. E. F.

D.

In a multicluster deployment model, a centralized TFTP service is used to serve files to all the clusters. When firewalls are implemented between each of the clusters, the centralized TFTP service stops serving files. This issue can be fixed by opening the appropriate ports on the firewalls.

In this scenario, TFTP (Trivial File Transfer Protocol) is used to serve files. TFTP uses UDP port 69 for file transfer. Therefore, option D - "Open UDP port 69 between the leaf cluster and the central cluster" is the correct answer.

Option A - "Open TCP port 22 between the leaf clusters and the central cluster" is incorrect as port 22 is used for SSH (Secure Shell) protocol, not TFTP.

Option B - "Open TCP port 443 between the leaf cluster and the central cluster" is incorrect as port 443 is used for HTTPS (Hypertext Transfer Protocol Secure) protocol, not TFTP.

Option C - "Open TCP port 8443 between the leaf cluster and the central cluster" is incorrect as port 8443 is used for secure communication over HTTP, not TFTP.

Option E - "Open TCP port 80 between the leaf cluster and the central cluster" is incorrect as port 80 is used for HTTP protocol, not TFTP.

Option F - "Open UDP port 500 to enable certificate synchronization between the TFTP servers" is incorrect as UDP port 500 is used for ISAKMP (Internet Security Association and Key Management Protocol), not TFTP.

In summary, the correct answer is option D - "Open UDP port 69 between the leaf cluster and the central cluster".