For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Steve_M__153836's avatar
Steve_M__153836
Icon for Nimbostratus rankNimbostratus
May 21, 2014

What is the impact of adding a floating IP to an active HA LTM pair?

Hello. I have recently started a new position and while going through the environment I've found a couple pairs of LTMs in HA config with floating IPs for some networks and not for others. I generall...
application delivery
design
floating ip
LTM
self ip
TMOS
StephanManthey's avatar
StephanManthey
Icon for Nacreous rankNacreous
May 21, 2014

Modifying floating IPs will also have an impact to active/active deployments. Make sure, to add a floating IP per traffic group.

 

Have a look as well to your virtual IP address settings, please. After upgrading from v10 to v11 sometimes the VIPs are not assigned to traffic-group-1. A typical symptom are "duplicate address" errors in your /var/log/ltm when applying config changes.

 

As written before, a floating self IP will be used i.e. for SNAT automap. Perhaps you need to adjust firewall settings accordingly.