Bug ID 509037: BIG-IP systems allows creating wild-card IPIP tunnels with the same local-address and tunnel-type

Last Modified: Jul 18, 2026

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

Known Affected Versions:
11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
12.0.0

Opened: Feb 24, 2015

Severity: 3-Major

Related Article: K17058

Symptoms

MCPD accepts the wild-card IPIP tunnels with the same local-address and tunnel type (ip4ip6, ipip, ip6ip4, ip6ip6) without validation, although the configuration is eventually discarded in TMM.

Impact

This incorrect configuration is allowed on the BIG-IP system without error.

Conditions

Creating wild-card tunnels with the same local-address and IPIP tunnel-type.

Workaround

Specify wild-card tunnel using different local-address and tunnel-type.

Fix Information

Wild-card tunnel setup trials are now detected by BIG-IP system validation during creation time. The system disallows creation of wild-card tunnels with the same local-address and tunnel-type.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips