Network Security

After upgrading ASA to version 9.18.4 we are seeing Azure Traffic Manager probes being dropped (or discarded). In the logs we see 'TCP access denied by ACL from <traffic manager IP> to Outside Interface /443' It works fine when reverting back to 9.16...

my costumer would like a report from firepower where he can simply see the top visited urls or websites. Is there a way to do this with firepower 6.2?  

Hi there,I have two ASA's that need to respond to Azure traffic manager probes, basically the outside interface IP's are a DNS lookup in traffic manager, however the ASA's drop the http probes from ATM. We cannot find anything in the service policy t...

Dear Community,I'm asking for you guidance. I have come across a challenge on Cisco ASA version 9.8. Need to allow a web server to be access outside(Public) from DMZ Zone to Ouside Zone.  Per below configuration template. Nat is transilating but acce...

After searching through other posts, my config seems OK but still strange behaviourasa 9.20 running on FPWR chasisI cannot get in enabled mode when connecting to ASA via console.It used to work but stopped after I played (disable and restore) with aa...

I am seeing the follwoing error message when I update the FMC admin account password. "cisco fmc an error has occurred when updating user account information in the firmware for lights-out management access. see log files for more details about possi...

HelloWe have a lot of clients getting the following error when contacting diffrent sites:  ERR_SSL_PROTOCOL_ERROR, we have read that SonicWall and Palo Alto also have these problemes. Solution is to turn off "TLS 1.3 Hybridized Kyber Support" in chro...

Good Day All,I found a vulnerability on my 4321 router regarding this:"The remote SSH server is vulnerable to a man-in-the-middle prefix truncation weakness known as Terrapin. This can allow a remote, man-in-the-middle attacker to bypass integrity ch...

Hello everybody,our customer has a FMCv running sugg. rel. 7.2.5.1 and has a high CPU load of approx. 97%.(see attached screen dump).The VM has 4 CPUs, 32GB RAM and 250GB HDD.The FMC is managing a HA of two Firepower 1120 running rel. 7.2.5.A FMC reb...

Trying to deploy an Instance via the FMC. Instance gets created okay on the deviceHowever I and am getting the error "This instances is not registered with this management centre".The Instance does not display in the "Devices All" page. But it is on ...

hello We have a old fire power that I have no idea how to upgrade. The actual device is a Cisco Firepower 2130 Threat Defense (77) Version 7.0.4 . Cisco Adaptive Security Appliance Software Version 9.16(3)18. and we have a FMC that is Cisco Firepower...

The current version of my Cisco Firewall is SSH-2.0-OpenSSH_7.5. Following the recommendation from our security team, I would like to upgrade it to version 8.8 or a later version. Can you please guide me on how to perform the upgrade?