BugZero | F5 BugID 708505 - IPv6 NDP with VLAN groups: unexpected neighbor adv...

F5 - Defect ID: 708505

IPv6 NDP with VLAN groups: unexpected neighbor advertisement and ICMPv6 unreachable messages

F5 - Defect ID: 708505

IPv6 NDP with VLAN groups: unexpected neighbor advertisement and ICMPv6 unreachable messages

Last updated on July 18th, 2026

BugZero Risk Score
6.1 Medium

Overall: 6.1

Severity: 6.4

Community: 4.2

Lifecycle: 9.2

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Bug Details

Priority: 4-Minor
Status: Test
Impact Category: Local Traffic Manager

Description

Symptoms

ICMPv6/Destination Unreachable is generated in response to ICMP/Echos for unresolvable neighbors in the VLAN group in opaque mode.

Impact

Unexpected traffic is generated.

Conditions

-- VLAN group in is the opaque mode. -- Receive ICMP/Echos for unresolvable neighbors.

Workaround

None.

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1

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: 708505

IPv6 NDP with VLAN groups: unexpected neighbor advertisement and ICMPv6 unreachable messages

F5 - Defect ID: 708505

IPv6 NDP with VLAN groups: unexpected neighbor advertisement and ICMPv6 unreachable messages

Last updated on July 18th, 2026

BugZero Risk Score6.1 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 708505

IPv6 NDP with VLAN groups: unexpected neighbor advertisement and ICMPv6 unreachable messages

F5 - Defect ID: 708505

IPv6 NDP with VLAN groups: unexpected neighbor advertisement and ICMPv6 unreachable messages

Last updated on July 18th, 2026

BugZero Risk Score6.1 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.1 Medium

BugZero Risk Score
6.1 Medium