Firepower Management Center Public IP change

[Brad_Shawh]

We are about to change our ISP and the public IP address of our FMC will change, I have all my sensors registered over internet. 

Should I have to re-register all the sensors or is there a way to edit some config and make it work?

[balaji.bandi]

if you change the IP whatever devices register with FMC also need to re-register. the best approach to de-register, and change the IP address and register whatever device part of the deployment.

if this is DNS-based then you change the DNS Entries should be sufficient in this case I guess.

[Chakshu Piplani]

Hi Brad,

Your best bet is to upgrade to 6.7 and then change the FMC IP, as this feature is supported from version 6.7 using the command "configure manager edit"

https://www.cisco.com/c/en/us/td/docs/security/firepower/670/relnotes/firepower-release-notes-670/m_features_functionality.html

Hope this helps,

Regards,

Chakshu

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