I didn't find any documentation how to restore a failed FTD, for example after a hardware RMA or a failed upgrade, as in my case.
I've already reimaged the FTD and want to re-register it with the FMC. It's part of a failover pair too in our case.
Please see the below urls for reference which might be helpful.http://www.cisco.com/c/en/us/td/docs/security/firepower/601/configuration/guide/fpmc-config-guide-v601/fpmc-config-guide-v601_chapter_01100110.pdfhttp://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw/200868-Configuring-Firepower-Threat-Defense-FT.htmlSimilar threadhttps://supportforums.cisco.com/discussion/13127371/ftd-registering-fmc-scenarioHope to help.
Thanks for the pointers, especially the HA replacement section!
I looked in the backup/restore section.
What would you do for a single FTD?
Breaking the failover pair didn't work because of an error in FMC.
I re-imaged both units with 6.2, reconfiguring all interfaces, routes, applying policies took a while but it works again.
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