*: prevent ping from forwarding

[rleungx]

What problem does this PR solve?

Issue Number: Close #9031.

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None.

[rleungx]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JmPotato, lhy1024

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [JmPotato,lhy1024]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-07 11:39:13.692357647 +0000 UTC m=+10996.088579708: ☑️ agreed by lhy1024.
• 2025-02-08 04:13:59.317844002 +0000 UTC m=+70681.714066063: ☑️ agreed by JmPotato.

[rleungx]

/retest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.21%. Comparing base (d9abd06) to head (b55c82b).
Report is 1432 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9042      +/-   ##
==========================================
+ Coverage   75.65%   76.21%   +0.55%     
==========================================
  Files         332      467     +135     
  Lines       33902    71156   +37254     
==========================================
+ Hits        25650    54232   +28582     
- Misses       6056    13532    +7476     
- Partials     2196     3392    +1196     

Flag	Coverage Δ
unittests	76.21% <100.00%> (+0.55%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

[ti-chi-bot]

@rleungx: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-integration-realcluster-test	b55c82b	link	true	/test pull-integration-realcluster-test

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.