NimbostratusWe have a stand alone BigIP 11.6.0 VE we are trying to delete the self IP for the external VLAN, but we are getting error: Cannot delete IP (10.254.108.75) because it is used by a system unicast address. I checked the DEVCENTRAL and I can see that was an issue only in case you have mirroring and HA but it is not the case with us.
EmployeeMake sure that any "Failover Unicast Configuration" items that reference that IP are removed from Device Management>Devices>Self Device>Device Connectivity>Failover Network
Eric
NimbostratusCheck network failover and config-sync, too.
If you have CLI access to the F5, the following tmsh command will show you all tmsh config references to the self-IP in question:
list one-line | grep (ip-address)
AltostratusMost likely network failover config as Eric pointed out. A standalone unit may still contain HA config especially if the setup utility was used.
NimbostratusThank you all the failover unicast configuration is there and the addresses are defined, when I reomved the IP it can be easily removed.