Bug ID 962433: HTTP::retry for a HEAD request fails to create new connection

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,

Fixed In:

Opened: Nov 04, 2020

Severity: 4-Minor


In case of a HEAD request, BIG-IP fails to set up a new connection to the server with the HTTP::retry iRule.


BIG-IP might send the retry HEAD request after the connection is closed, more specifically after the server has sent a FIN, the retry is leaked on the network.


1.) Basic HTTP profile is configured on BIG-IP 2.) BIG-IP sends the HEAD request to the server and gets error response 3.) iRule with HTTP::retry is configured 4.) The system is using the default (non-debug) TMM version



Fix Information


Behavior Change

Guides & references

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