Bug ID 1758029: [APM][NA]VPN tunnels fail to establish when a virtual server is on a non-default route domain

Last Modified: Jun 28, 2025

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

Known Affected Versions:
16.1.6, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2

Fixed In:
17.5.1

Opened: Dec 05, 2024

Severity: 3-Major

Related Article: K000150565

Symptoms

Observe VPN fails with below error in /var/log/ltm err tmm[20501]: 01470000:3: iSession: Connection error: isession_handle_syn:3737: No peer:4

Impact

VPN fails to establish

Conditions

-- VPN configured across multiple route domains -- Route domains are not related -- BIG-IP v17.1.x (this can be encountered while upgrading to v17.1.x)

Workaround

Make sure the default route domain is a parent of the non-default route domain.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips