Bug ID 1797893: Layered virtual proxy chaining solution breaks before proxy_select_agent with ERR_VAL post 15.1.9

Last Modified: Feb 13, 2025

Affected Product(s):
BIG-IP APM, Install/Upgrade(all modules)

Known Affected Versions:
15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6, 17.1.1.4, 17.1.2, 17.1.2.1

Opened: Jan 31, 2025

Severity: 3-Major

Symptoms

The proxy_select agent in prp fails with an error: Executed agent (/Common/my_proxy_chain_prp_act_proxy_select_ag) failed with reason (UNKNOWN

Impact

The EMS fails to work after the upgrade to 15.1.9 and up. Even on 17.1.1.4.

Conditions

-- Layered virtual proxy chaining solution

Workaround

Include "ssl bypass set" before "proxy select", this works from 15.1.9 onwards or use "Explicit, no URI rewrite" instead of "explicit" mode

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips