Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

The-messenger's avatar
The-messenger
Icon for Cirrostratus rankCirrostratus
Jan 29, 2019

Track/Log Pool section for a specific client IP

LTM 12.1.4 How can I track selection/usage from a specific client IP to a VIP/Pool selection?   Trying to help determine what and application is failing through LTM.  
application delivery
LTM
KeesvandenBos's avatar
KeesvandenBos
Icon for MVP rankMVP
Jan 29, 2019

Hi,

You could use this irule.

when CLIENT_ACCEPTED {
  log local0. "client: [IP::client_addr]:[TCP::client_port] server:"
}
when LB_SELECTED {
  log local0. "client: [IP::client_addr]:[TCP::client_port] server: [LB::server addr]:      [LB::server port]"
  if { [IP::client_addr] == [LB::server addr] } {
log local0. "client: [IP::client_addr]:[TCP::client_port] LB::reselect"
    LB::reselect
  }

Cheers,

Kees