A BIG-IP Administrator creates a new Virtual Server. The end user is unable to access the page. During troubleshooting, the administrator learns that the connection between the BIG-IP system and server is NOT set up correctly. What should the administrator do to solve this issue? (Choose one answer)

A. Disable Address Translation
B. Set Address Translation to Auto Map, configure a SNAT pool, and have pool members in the same subnet of the servers
C. . Set Address Translation to SNAT and configure a specific translation address
D. Set Address Translation to SNAT and have self-IP configured in the same subnet of servers

Correct Answer: C

Brave-Dump Clients Votes

D 100%

Comments

Payton K 2026-01-09 18:03:34

Selected Answers: D

This issue indicates a server-side connectivity problem, most commonly caused by asymmetric routing:

The BIG-IP forwards the client request to the server

The server responds directly to the client, bypassing the BIG-IP

The connection fails because return traffic does not pass back through the BIG-IP

Why SNAT with a self-IP fixes it

Enabling SNAT causes the BIG-IP to translate the source address of server-side traffic

The server sees the request as coming from a BIG-IP self-IP

The server replies back to the BIG-IP

The BIG-IP then forwards the response to the client correctly

A self-IP in the same subnet as the servers ensures proper Layer 2/Layer 3 reachability.

Why the other options are incorrect

A. Disable Address Translation ❌
This makes asymmetric routing more likely, not less.

B. Set Address Translation to Auto Map, configure a SNAT pool, and have pool members in the same subnet ❌
Auto Map uses self-IPs automatically; configuring a SNAT pool is unnecessary and incorrect in this context.

C. Set Address Translation to SNAT and configure a specific translation address ❌
Possible, but the question specifically points to fixing connectivity using proper BIG-IP configuration. The expected exam answer is SNAT using self-IPs.

Exam takeaway

Server connection issues after creating a Virtual Server → enable SNAT using a self-IP

Anonymous User 2026-01-29 19:56:49

Selected Answers: D

correct answer

Anonymous User 2026-02-25 23:52:10

Selected Answers: D

D. Set Address Translation to SNAT and have self-IP configured in the same subnet of servers
When the BIG-IP system cannot properly communicate with the backend servers (the server-side connection is broken), SNAT is needed so the servers can route return traffic back to the BIG-IP. The self-IP must be in the same subnet as the pool members so the servers know where to send their responses.