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

Forum Discussion

Aspirin240's avatar
Aspirin240
Icon for Nimbostratus rankNimbostratus
Apr 01, 2020

Returning traffic from the pool members with a different port

Hi,   We have an IIS application that is communicating with the client using HTTPS/443, we have a basic VS setup to load balancing between 3 pool members. .Recently we have introduced a new featu...
application delivery
big-ip
LTM
Aspirin240's avatar
Aspirin240
Icon for Nimbostratus rankNimbostratus
Apr 02, 2020

Thanks Peter and Rodrigo for the suggestions,

 

I was trying to test with FastL4 profile but it wouldn't let me because I am using "Standard Type". Out of the 4 types that are supported by FastL4 which one should I pick?

 

  • Performance (Layer 4)
  • Forwarding (Layer 2)
  • Forwarding (IP)
  • Internal

 

PeteWhite's avatar
PeteWhite
Icon for Employee rankEmployee
Apr 02, 2020
You want Performance (Layer 4). You can also do a forwarding VS, only listening on the internal VLAN. You can also listen on a set of ports using port lists, in v14+ iirc