On Cisco ASA, when looking at the output from show crypto ipsec sa peer 123.456.789.0 detailI see the following - #pkts invalid len (rcv): 370258976 what does this indicate?  

I need to change the hostname of the FMC.  Currently the hostname is firepower-02.  Changing the name from the GUI -> System -> Configuration -> Information does not change the hostname as indicated in the online help.  "A name you assign to the appl...

I have a Lab setup where there is a FMCv, FPR-2110-FTD, FPR4110-FTD, 5515 W/Firepower Services, and 5506-FTD.  All the FTD devices us an IP Address in the 10.239.1.0/24 network assigned to the management interface to communicate with the Manager (FMC...

The company I work for is in the process of taking over management of several Firepower 4120 devices that are currently running FXOS version 2.1.1.66.  This version is not on the download site.  The versions available for download in the 2.1.1 train ...