Network Security

Hi all,I cannot install the SSL certificate we purchased onto my ASA. Here are the messages I'm getting:Can not select my public key (ssl.key)Received General Purpose certificate for signature keypairDo you wish to accept this certificate? [yes/no]:...

Hello everyone,I have Cisco ASA 5525-X with following imagesasa922-4-smp-k8asdm 7.2(2)1asasfr-5500x-boot-5.4.0 I need to deploy the firewall in Datacentre environment. For this purpose , i want to create zones/zone pairs and assign interfaces to diff...

Hi Community, I am new with Cisco firewall and need some advice on the network diagram. We will deploy 2x ASA firewall 5516 with Firepower for external and internal. We will use SG500-X switch in the network for DMZ and LAN. Based on the diagram an...

Hi All    Really struggling to find an answer to this which is strange.    Weve got got a couple of ASA’s with Firepower module on.   the firewalls themselves have got Certs installed from m our CA so we don’t get cert warnings. However I’m still ge...

If you get a notification saying "Error in saving certificate: status = FAIL" when installing an SHA-256 certificate, this means that the SHA-256 algorithm is not supported. how to resolve this error please update me 

Hi all, I need to setup FMC in HA through the FW environment. I went through the configuration guide and cannot find clear confirmation which ports I need to open on the FW to allow HA communication. Is it just TCP 8305 listed in the configuration gu...

Hi theirI m using cisco security manger 4.7 every thing was normal but now i can't find all my firewalls on the device liste, even though i can see the events detected by the disappeared FW, Also adding a FW to the device liste, it disappears  direct...

Hi Folks, Wondering if you can help me solve an issue. We are using split tunnel mode and I have some specific IPs that are going over the VPN i.e 10.0.0.1/24, 172.16.20.1/24. My Client IP assignment is issuing the clients IPs from 192.168.1.1/24. So...

Dear community,I would like to ask you for a help with following topics1. We have setup automatic email alerting on our FMC in case intrusion event or malware event is detected.below is an example of **Auto Generated Email** alert for detected intrus...

Hello everyone, I have a strange one for you. We have two ASA in active/standby failover. Due to a 4500-x(our cores) Bug we had to take down the inside and failover link of the standby firewall. Once we did this we noticed about a 1-3% packet loss on...

I try to understand some simple NAT things on Cisco ASA.I have multiple machines PAT'ed (Hide) to the Outside interface to provide Internet connectivity.On of those machines also has a application running on tcp/7550 which i want to access over the I...

Hi,I have 4 x pairs of 2130 with about 18-22 contexts max on them.  One pair has consistently hit this bug and there seems to be no way to determine why/how?  anyone have had this and what was the cause.