Network Security

Hello all, I'm having some trouble with configuring an Cisco 881 router with CCP. I'm still learning my way through the way Cisco handles firewall. I'm trying to block all but a few ports going to a particular network device in the network, and I ca...

Hi There!! In a Company where I offer technical Support , there are several Fw´s like 5580,5525, 5555, But I would like to Know if There is device /Software thata can operate like a Centraliced device for those ASA´s ? The only option I found is the...

FMC 6.2.1 does not have an uninstall package.  Anyone know how to remove this update? Thanks, Robert

Installed a new Nexus 9k core and ASA 5525-X today and wasn't able to SSH from the Nexus to the ASA. We get the following error: nex9k-01# ssh 10.x.x.x <-- Inside interface of ASAUnable to negotiate with 10.x.x.x port 22: no matching key exchange met...

Hello, I am installing a new firepower 2120 NGFW and none of the interface get a link apart from the management interface.  Has anyone encountered this? I have the interface enabled in the FMC and I have tried reloading the system but still I get no...

I have Sourcefire 7030 sensor in my deployment that someone accidentally cut the power cable to with a punch-down. I know these machines are going EOL soon but we need it up for the time being. I would pull the model number off of the brick but the g...

I am struggling to get FirePower communicating within 5508-X active/standby pair.  From the documentation, I am showing I should have the "inside" interface as well as the management 1/1 both within the same internal network.  I have connected (insid...

Hi  currently IP base ACLs are configured on ASA 5525X for office365. i want to configure FQDN base ACL for office365. can someone tell me what are the drawbacks if i configure with FQDN instead of IP base ACL ? regards

Hi Team,   we are using ASA 5545-K9 model in DC environment . shall anyone provide feasible code for this model , whether i use 9.8 or below on that 

Hi all. kindly please advise, we doing a firewall project where we are bringing in 5555-X with firepower module. we wanted the SSL encrytion/decryption. but our supplier advise this is not a good idea. better to leave this as it will degrade the perf...