Gadget_323147
Nimbostratus
NimbostratusHow to change netmask on self ip in version 12
Network guys changed the mask for two of my GTMs I need to change my mask to match. IOS version 12.1.2 I only need to change the self ip mask.
Forum Discussion
Emre_Ovali_1466
Cirrus
CirrusHi Michael,
There is another and easy way to change the subnet mask of a self IP address.
So,
/config/bigip_base.confWhen you open this file with an editor like "vi" , you should see the Ip address configuration of a specific IP like this.
net self /Common/192.168.10.2 {
address 192.168.10.2/24
traffic-group /Common/traffic-group-local-only
vlan /Common/Vlan328
}
Then, what you need to do is only to change the related subnet mask fields with the new one and save the file.
Finally, run the command
tmsh load sys config
Stanislas_Piro2Cumulonimbus
Modifying files is a wrong idea. I once made a change of this file with a mistake... the appliance detected it, rebooted because of system fallback... then rebooted after 20 seconds... then rebooted...
the same configuration can be made with
where you paste the expected configuration. if there is a wrong format, it will not apply change and warn you.load sys config merge from-terminal- Emre_Ovali_1466
Do you remember what you changed in the configuration file? I offered this as a solution, because it should be pretty easier to change only 2 numbers in a file for an F5 administrator. I would not be commented about your problem without knowing what you changed in this file. I agree with you if a more detailed change was needed.
- Stanislas_Piro2
i's an old issue (6-7 years ago).
I never recommend to edit the configuration file except if tmsh can't do the same. In this case, it is possible with tmsh, so don't edit file.