Bug ID 2298637: Gateway ICMP Monitor Properties Cannot Be Modified When Attached to a Pool/Node with Destination Set to All Addresses

Last Modified: Jun 09, 2026

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

Known Affected Versions:
16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1, 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, 17.5.0, 17.5.1, 17.5.1.2, 17.5.1.3, 17.5.1.4, 17.5.1.5, 17.5.1.6, 21.0.0, 21.0.0.1

Opened: May 22, 2026

Severity: 2-Critical

Symptoms

-- Create an LTM gateway-icmp monitor with the destination set to all addresses ":"" - TMSH Command: tmsh create ltm monitor gateway-icmp test_gateway_icmp_monitor destination *:* -- Create an LTM pool with a node and attach the gateway-icmp monitor: - TMSH Command: tmsh create ltm pool test_gateway_icmp_pool monitor test_gateway_icmp_monitor members add { 10.2.3.4:80 } -- Modify the LTM gateway-icmp monitor: - TMSH Command: tmsh modify ltm monitor gateway-icmp test_gateway_icmp_monitor destination *:* description Updated

Impact

Gateway-icmp monitor properties, like description, etc., cannot be modified when attached to a pool/node, and the destination is set to all addresses

Conditions

Gateway_icmp monitor created with all addresses and attached to the pool

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips