Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
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, 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, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2
Fixed In:
15.1.0, 15.0.1.3, 14.1.2.5, 13.1.3.2
Opened: Apr 12, 2019 Severity: 3-Major
When probing DNS Path, the metric round trip time (RTT) is not set correctly if the collection protocols used are NDS_DOT or DNS_REV. The problem occurs only if the Path involves an IPv6 address; IPv4 address works fine.
RTT metric is not set at all.
-- Path involves IPv6 addresses. -- Collection protocol used is either DNS_DOT or DNS_REV.
Use collection protocols - ICMP instead.
The problem for both collection protocols - DNS_DOT and DNS_REV no longer occurs, and the RTT is set correctly.