Bug ID 567100: A HTTP CONNECT request should not be closed

Last Modified: Jul 18, 2026

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

Known Affected Versions:
12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4

Fixed In:
12.1.0

Opened: Jan 12, 2016

Severity: 3-Major

Symptoms

A HTTP CONNECT request may be closed early if the server doesn't respond with a Keep-Alive header.

Impact

HTTP CONNECT requests will fail due to early termination.

Conditions

The server's response to the HTTP CONNECT request does not contain a Keep-Alive header.

Workaround

None

Fix Information

HTTP CONNECT requests are kept alive even without a Keep Alive header or 1.1 response.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips