F5 Networks 301b Exam - Topic 2 Question 113 Discussion

Actual exam question for F5 Networks's 301b exam

Question #: 113
Topic #: 2

An LTM Specialist troubleshooting an issue looks at the following /var/log/ltm entries:

Oct 2 04:52:42 slot1/tmm7 crit tmm7[21734]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)

Oct 2 05:37:16 slot1/tmm7 crit tmm7[21734]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)

Oct 2 05:57:32 slot1/tmm2 crit tmm2[21729]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)

Oct 2 06:30:03 slot1/tmm7 crit tmm7[21734]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)

Oct 2 06:37:44 slot1/tmm2 crit tmm2[21729]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)

Oct 2 06:47:05 slot1/tmm5 crit tmm5[21732]: 01010201:2: Inet port exhaustion on 10.143.109.5 to 10.143.147.150:53 (proto 17)

Which configuration item should the LTM Specialist review to fix the issue?

ASNAT Pool

BPool Member

CPort Lockdown

DVirtual Server Port Translation

Show Suggested Answer

Suggested Answer: A

by Katina at Jul 08, 2025, 03:53 PM

Limited Time Offer

25%

Off

Get Premium 301b Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Lettie

6 months ago

I think it could also be a Pool Member issue.

upvoted 0 times

...

Sylvia

6 months ago

Definitely need to check the SNAT Pool settings.

upvoted 0 times

...

Elenore

6 months ago

Wait, is it really that simple?

upvoted 0 times

...

Kaitlyn

6 months ago

Not sure if it's just the SNAT Pool, could be more to it.

upvoted 0 times

...

Roy

6 months ago

Looks like a classic case of port exhaustion.

upvoted 0 times

...

Leah

7 months ago

I vaguely recall that virtual server port translation could play a role, but I think the SNAT Pool is more likely the key here.

upvoted 0 times

...

Annice

7 months ago

I feel like I might be mixing things up, but isn't port lockdown more about security? I don't think that's the right answer.

upvoted 0 times

...

Glory

7 months ago

This seems similar to a practice question we did on port exhaustion. I think reviewing the SNAT Pool could help resolve the issue.

upvoted 0 times

...

Bette

7 months ago

I remember something about SNAT pools being important for managing IP addresses, but I'm not entirely sure if that's the right choice here.

upvoted 0 times

...

Dawne

7 months ago

Okay, based on the log entries, it seems like the pool member configuration could be the culprit. I'll review that to try and resolve the problem.

upvoted 0 times

...

Casey

8 months ago

Ah, I think the port lockdown settings might be the issue here. I'll double-check those to see if they're configured correctly.

upvoted 0 times

...

Diego

8 months ago

Hmm, I'm not sure what's causing the port exhaustion. I'll need to look into the virtual server port translation settings to see if that could be the problem.

upvoted 0 times

...

Nina

8 months ago

This looks like an issue with port exhaustion on the LTM. I'll need to review the SNAT pool configuration to see if that's the root cause.

upvoted 0 times

...

Mireya

10 months ago

Definitely a port exhaustion problem. I'd go with the SNAT Pool option to see if that resolves the issue.

upvoted 0 times

Fredric

9 months ago

C) Port Lockdown

upvoted 0 times

...

William

9 months ago

B) Pool Member

upvoted 0 times

...

Carmen

10 months ago

A) SNAT Pool

upvoted 0 times

...

Gayla

11 months ago

I believe Port Lockdown might also be worth reviewing, it could be related to the port exhaustion.

upvoted 0 times

...

Kate

11 months ago

I agree with Irene, Virtual Server Port Translation could be the key to fixing the issue.

upvoted 0 times

...

Matthew

11 months ago

The Virtual Server Port Translation might be the culprit. That's where I'd start looking to resolve this problem.

upvoted 0 times

Deeann

10 months ago

Let's check the Virtual Server Port Translation configuration first.

upvoted 0 times

...

Odette

10 months ago

I agree, the Virtual Server Port Translation could be causing the issue.

upvoted 0 times

...

Irene

11 months ago

I think the LTM Specialist should review the Virtual Server Port Translation.

upvoted 0 times

...

Fabiola

11 months ago

Ha! Guess the LTM Specialist needs to do some serious port management here. Can't wait to see how they fix this one.

upvoted 0 times

...

Deane

11 months ago

Hmm, these logs suggest the LTM is running out of available ports. Time to review the Port Lockdown settings.

upvoted 0 times

Margot

10 months ago

I think looking into the Port Lockdown configuration is the next step.

upvoted 0 times

...

Irving

10 months ago

Maybe adjusting the Port Lockdown settings will resolve the issue.

upvoted 0 times

...

Ludivina

10 months ago

I agree, let's check the Port Lockdown configuration.

upvoted 0 times

...

Cherelle

11 months ago

Looks like a port exhaustion issue. I'd start by checking the SNAT Pool configuration.

upvoted 0 times

Belen

10 months ago

I think Port Lockdown could also be causing the issue.

upvoted 0 times

...

Shawnee

10 months ago

Let's also look at the Virtual Server Port Translation settings.

upvoted 0 times

...

Harris

10 months ago

I agree, checking the SNAT Pool configuration is a good first step.

upvoted 0 times

...

Lenny

11 months ago

D) Virtual Server Port Translation

upvoted 0 times

...

Kaitlyn

11 months ago

C) Port Lockdown

upvoted 0 times

...

Velda

11 months ago

B) Pool Member

upvoted 0 times

...

Nan

11 months ago

A) SNAT Pool

upvoted 0 times

...