BugZero | F5 BugID 1824097 - ARP is disabled in the virtual server listener whe...

F5 - Defect ID: 1824097

ARP is disabled in the virtual server listener when a DOS profile is configured via the Protected Object page

F5 - Defect ID: 1824097

ARP is disabled in the virtual server listener when a DOS profile is configured via the Protected Object page

Last updated on July 28th, 2026

BugZero Risk Score
6.7 Medium

Overall: 6.7

Severity: 7.3

Community: 4.2

Lifecycle: 6.4

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Bug Details

Priority: 3-Major
Status: New
Impact Category: Advanced Firewall Manager

Description

Symptoms

After assigning a transparent DOS profile to a virtual server, the virtual server may suddenly stop processing traffic and will not respond to ARPs.

Impact

The virtual server stops accepting traffic (no route to host) due to ARP disabled

Conditions

The DOS profile is applied via Security >> DoS Protection >> Protected Object

Workaround

Manually enable ARP(and icmp-echo) on the virtual-address: #tmsh modify ltm virtual-address <ip address> arp enabled (icmp-echo enabled)

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.1.3.2, 17.1.3.4

Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: No known fixed versions

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F5 - Defect ID: 1824097

ARP is disabled in the virtual server listener when a DOS profile is configured via the Protected Object page

F5 - Defect ID: 1824097

ARP is disabled in the virtual server listener when a DOS profile is configured via the Protected Object page

Last updated on July 28th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 1824097

ARP is disabled in the virtual server listener when a DOS profile is configured via the Protected Object page

F5 - Defect ID: 1824097

ARP is disabled in the virtual server listener when a DOS profile is configured via the Protected Object page

Last updated on July 28th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.7 Medium

BugZero Risk Score
6.7 Medium