Bug ID 708266: IPv6 NDP with vlan-groups: unexpected Neighbor Advertisement and ICMPv6 unreachable messages

Last Modified: Jan 29, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 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, 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, 13.1.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4

Fixed In:
14.1.0

Opened: Feb 28, 2018
Severity: 3-Major

Symptoms

Stale NDP entries will generate an ICMPv6 Neighbor Advertisement (NA) if Neighbor Solicitations (NS) are received in rapid succession.

Impact

Unexpected NA informs about the reachability of the neighbor that in fact might be not reachable.

Conditions

Neighbor entry being queried by the NS is in the probe state caused by the previous NS packet.

Workaround

There is no workaround at this time.

Fix Information

Unexpected Neighbor Advertisement is no longer generated if Neighbor Solicitations are received in rapid succession.

Behavior Change