Reason: the command " capture-traffic " is used for SNORT Engine Captures. To capture a LINA Engine Capture, you use the " capture " command. Since the Lina Engine represents the actual physical interface of the device, " capture " is the only reasonable choice Reference:https://www.cisco.com/c/en/us/support/docs
/security/firepower-ngfw/212474-working-with-firepower-threat-defense-f.html#anc10 The command is firepower# capture DMZ interface dmz trace detail match ip host 192.168.76.14 host 192.168.76.100 firepower# capture INSIDE interface inside trace detail match ip host 192.168.76.14 host 192.168.75.14