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

Forum Discussion

PeteTheFarmer_3's avatar
PeteTheFarmer_3
Icon for Nimbostratus rankNimbostratus
Aug 01, 2017

Using dynamic IPs in a Virtual Server

Hi Team,   We use an Australian based SMS provider, whisper, to send OTPs to mobile devices. I've setup a http authentication server that constructs the SMS that sends the SMS' to Whisper's api.wh...
BIG-IP Access Policy Manager (APM)
cloud
LTM
Brad_Parker's avatar
Brad_Parker
Icon for Cirrus rankCirrus
Aug 02, 2017

Why not just make your http AAA server a hostname you control with those api.whispir.co FQDN nodes in the pool and then use an iRule to change the host header to api.whispir.com on the server side?

 

  • Ruggerfly1's avatar
    Ruggerfly1
    Icon for Nimbostratus rankNimbostratus
    Aug 03, 2017

    Implementing in the same type situation - haven't finished testing but for the VS I used a made up IP for the destination, made sure Vlans and tunnels was set to Enabled on - in the selected box empty. Then created a Host entry under System DNS for the FQDN to that IP. Since it's static local the F5 should never try to resolve off box, then use the FQDN nodes for the pool. Used the resolved Cnames for the pools members.

     

    Just an option. Follows what Brad noted.