Bug ID 2264013: Unable to retrieve the tower ID using an iRule when the user-location-info size exceeds 8 bytes.

Last Modified: Jul 09, 2026

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

Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.1.3.2

Opened: Apr 10, 2026

Severity: 3-Major

Symptoms

When creating a subscriber/session with user-location-info greater than 8 bytes and attempting to extract it using a custom iRule filter in the PEM policy.

Impact

Unable to extract user-location-info using a custom iRule filter in the PEM policy.

Conditions

Subscriber/session creation with user-location-info greater than 8 bytes (e.g., string length 0x + (2 * 8) = 18 characters). Example: 0x001300621A2B3C4D.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips