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

Forum Discussion

jmusci_327228's avatar
jmusci_327228
Icon for Nimbostratus rankNimbostratus
Oct 24, 2017

Irule Big-ip Forward Proxy

Hi all, I need to configure the big-ip as forward-proxy: an internal server needs to reach Internet and pass through f5. I have already created an internal virtual server, now I should create an irul...
big-ip
irules
security
ekaleido_26616's avatar
ekaleido_26616
Icon for Cirrocumulus rankCirrocumulus
Oct 24, 2017

In the world of AWS and Azure, the list of IPs on the internet will potentially change all the time for various FQDN so you will end up babysitting your iRule. I would not suggest using a virtual forwarder and iRule for this task.

 

  • jmusci_327228's avatar
    jmusci_327228
    Icon for Nimbostratus rankNimbostratus
    Oct 24, 2017

    This is the cause i want use FQDN and not just the IP: for example for windows update i will set the FQDN, after that Big-IP will ask the ip address relating this server. I know that ip address for automatic updates, for example, change every week.

     

    But i need also to create the connection for single and exact IP.

     

    Maybe i could create 2 irule, ip address destination based or FQDN based.