Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10
Opened: Feb 27, 2014 Severity: 4-Minor Related Article:
K15537
A BIG-IP UDP virtual server may not send an ICMP Destination Unreachable message Code 3 (port unreachable). As a result of this issue, you may encounter the following symptoms: -- Client applications may not respond or appear to hang. -- When attempting to troubleshoot the connectivity issue from remote devices, no ICMP diagnostic data is available from the BIG-IP system.
In versions 11.3.0 through 11.4.1, the system silently drops the request. In versions 11.5.0 and later, the system sends back the ICMP message with type 13 ('administratively filtered').
This issue occurs when the following condition is met: All pool members for the UDP virtual server are unavailable.
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