Bug ID 564246: VPN cannot be used in some cases when IP filtering engine is enabled

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.3.0, 12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,

Opened: Dec 21, 2015

Severity: 3-Major


NA connects and disconnects within 30 seconds in some cases if IP filtering engine is enabled in Network Access configuration


User cannot establish VPN


-IP filtering engine is enabled in Network Access configuration - Network Access virtual server connections are redirected to another internal virtual server in BIG-IP connfiguration


Do not redirect Virtual server connection or disable IP filtering engine. There are a couple of other workarounds: 1. Have the same port number for both the virtual servers. 2. If the port numbers need to be different for the 2 virtual servers, insert variable assignment agent which assigns value of client facing port (443 in this case) to variable session.server.network.port. Use custom variable and Text selections of agent. example: apm policy agent variable-assign /Common/na_act_variable_assign_ag { variables { { expression "return {443}" varname session.server.network.port } } }

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips