Network Security

Hi Experts,We are facing some issue on what I think is caused by fragmentation.After doing a packet capture on the network, we noticed that we are receiving multiple Dup ACKs, Re-transmissions and TLS Ignored Unknown Record。Multiple applications are ...

hello to everyone , it is possible to configure 4 wan pppoe interfaces in a load balance mode in a firepower 1140 ? Thanks in advanced!

I just received an asa 5505 back on warranty and it came with software release 7.2. They no longer offer downloads for anything under 9.0. Anyone see a problem with upgrading from 7.2 to 9.1 as long as I don't have a config to migrate over?

I am unable to install the new certificate even though the old certificate have been deleted.The deleted certificate is still in use even though I can not see it. It is the certificate to be redirected when you are using guest wifi. ISE 2.6Installed ...

Hi Everyone, Just wondering if you know what the minimum memory requirement is for running version code 9.8.4.  Is 4GB enough on the Cisco ASA 5512-X? Thank you! 

Hi,I am having issues to make work a passive FTP server with explicit TLS encryption because ASA is blocking the response on a random port, even when I have enabled this configuration:access-list ftp-list extended permit tcp any any gt 1000!class-map...

Hi, When checking firepower dashboard, saw a number of connection events that should have been dropped were showing as "would have been dropped" indicating the packets were allowed to flow when they shouldn't have. I'll attach screen shots of a few o...

On 13th of May we updated our Cisco ASA 5525 Cluster from 9.10(1)17 to 9.12(3)12.Today I saw in our PRTG monitoring, that the cpu usage is know on 29-33 % during the night, when it was 3-5% before the update. The CPU usage raised exactly at the momen...

Hello to everyone, Recently we bought a firepower 1140 threat Defence and i am wondering if i am able to confirure an outside interface with PPPoE.  i perfromed the initial configuration and also i dont know how to configure that. i am not able to ch...

Hello for everybody. I need to allow tcp and udp 123 port on external asa interface from two external ntp servers and block from any other.  The following acl is currently applied on the external interfaceaccess-list OUTSIDE_NAT extended permit icmp ...