Network Security

I am trying to migrate FPR 2100 FTD to FPR 3105 FTD. Both of them are managed by the same FMC. The FPR3105 has only one configured interface: the management interface. When I use the migration from the FMC, it fails after mapping the interface. Any r...

I’m a bit confused about Dynamic NAT and PAT on Cisco ASA.When I configure Dynamic NAT/PAT, an inside host initiates a connection to an outside host, and the ASA creates a translation and connection/state entry.My question is: if a new connection/req...

I am trying to register my FTD with the Smart Account. It is failing. I checked from the CLI; I can ping Cisco from the outside interface but cannot from the management interface. I think the license registration is done through the Management. Is it...

 In fmc version 10 i see this critical alert Security Intelligence2 System feeds failedresponse processing failed for Cisco_DNS_Intelligence_Feedresponse processing failed for Sourcefire_Intelligence_Feedi logged in the fmc cli and i can connect to u...

Hi All,I have created tunnel between AWS and FTD and able to prioritise tunnel1 over tunnel2 by applying an AS-path prepend.But the current situation is we have one legacy tunnel with ASA for same traffic and ASA is advertising routes with MED values...

Hi all, How can I block apk file and android software update in ASA 5525x firesight? I have tried various ways to block them but cannot success yet.Please help me to solve that.

Hello Cisco Community,I have block rule from ACL in FMC (not ACP), how do I check the deny logs? I saw nothing when I tried to filter by ip source and dest port. I have tested with telnet and the connection refuse as expected, but where to check the ...

Hello community,I am experiencing an intermittent connectivity issue in an environment with Cisco ASA firewalls in failover mode and Nexus 5K switches configured with vPC. I would appreciate any insights or confirmation of possible root cause scenari...

I am registering fmc with on prem ssm but fmc is throwing "An error occurred when registering the system with smart licensing cloud"I am using my own internal CA issued certificate for browsing (8443) and product registration (443) as well. I am able...

Hi everyone,I have recently set up a remote syslog server and configured syslog logging for Cisco FTD (v7.6.4) via FMC.The logs are being sent and received as expected. Here is an example of an IPS event log from the syslog server:<41>Sep 2 08:48:28 ...

Has anyone had any issues with Debian Bookworm 12 or Pythion version 3.11.2guessing the below error is Cert related.main# bash encore.sh test2026-08-25T12:38:47.956218 Diagnostics INFO Checking that configFilepath (estreamer.conf) exists2026-08-25 12...