Forum Discussion

Bob_Porambo's avatar
Bob_Porambo
Icon for Nimbostratus rankNimbostratus
May 29, 2019

Changing netmask for self-ip and floating-ip V12

I've read several articles within regarding the ability to change the netmask on a vlan. Some recommend editing the base.conf file and reloading while others indicate we should shy away from that me...
application delivery
LTM
Oscar_Pucheta's avatar
Oscar_Pucheta
Icon for Cirrus rankCirrus
May 29, 2019

I would do it modifying the bigip config files. creating a backup first for obvious reasons. Remember the non floating self ip are not sync'd between the boxes, only the floating self ip are. I don't see why you shouldn't do it on the standby units first, it is the reasonable thing to do. I would do this, starting with the standby:

-Create UCS backup

-Create a copy of bigip config files (bigip_base.conf and bigip.conf) just in case

-Modify mask for floating and not floating at the same time

-run:

tmsh load sys config base verify

tmsh load sys config verify

-if all is good, then run:

tmsh load sys config base

tmsh load sys config

-Proceed with the other units.

 

Best Regards,

Oscar Pucheta

https://www.australtech.net

https://www.linkedin.com/in/npucheta/