Changing Management subnet Mask- F5 LTM
We've a pair of F5's in HA where Firewall is the gateway with /29 subnet.
Now, we'd like to expand the subnet from /29 to /28 to accomdate or install a new switch in our data center. . Noticed, K62249587 mentions about changing the management IP but my query is regarding the subnet-mask (Management IP remains the same).
Just changing the subnet-mask on F5 standby followed by F5 Active via configuration utility along with the changes on Gateway subnet mask. Will it suffice or will it create any issues in HA. Please note Mgmt interface is used in 'Failover Network' as a part of HA config.
Also, please assist if this needs any maintenance window.
Primary F5- 10.1.1.26/29
Secondary F5- 10.1.1.27/29
Primary F5- 10.1.1.26/28
Secondary F5- 10.1.1.27/28
Though creating a new interface for the VLAN on gateway would be a straight forward option, I just wanna know if this is feasible. Thanks in advance.