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babiojd01
Beginner

If you attempt to add an FP sensor and it becomes partly added

You may receive the error message that the active peer already exists. To fix this you can ssh into your FMC device, locate the UUID by cd changing into /usr/local/sf/peers to see what peers exist. In my case only the IP address portion was there not the string of characters. You can then cd /usr/local/sf/bin/remove_peer.pl "IP or NAME" FORCE.

1 REPLY 1
Marvin Rhoads
Hall of Fame Guru

Good tip.

You can also check the peers via querying the database as described in this thread:

https://community.cisco.com/t5/firepower/fmc-unable-to-save-a-backup-or-to-upgrade/td-p/3094446

From the FMC cli, become root ("su -") and run this command:

mysql -padmin sfsnort -e "select name,ip,uuid,role from EM_peers where role !=0"
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