Bug ID 617682: ntp server replies to any multicast request

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4

Opened: Sep 20, 2016
Severity: 4-Minor

Symptoms

The ntp server running on BIG-IP will reply to any NTP request on the management vlan which has a multicast destination MAC address, regardless of the request's destination IP address.

Impact

Multicast NTP clients may have difficulty synchronizing clocks.

Conditions

Clients which make use of multicast NTP.

Workaround

None

Fix Information

None

Behavior Change