Bug ID 2238473

Bug ID 2238473: MCP DNS rule validation for DNS type64 or type65 results in SIGSEGV

Last Modified: Sep 18, 2026

Affected Product(s):
BIG-IP None(all modules)

Known Affected Versions:
17.5.1.3, 17.5.1.4, 17.5.1.5, 17.5.1.6, 17.5.1.8, 17.5.1.9

Fixed In:
21.1.0

Opened: Mar 10, 2026

Severity: 2-Critical

MCPD is crashing when an iRule is attached to a wideip of type64 or type65.

MCPD crashes

Configure a wideip of type64 or type65, attach an iRule, and then MCPD crashes.

None

Added the iRule dependency validation check.