Network Security

Hello,We have two data centers, Primary site (DC1) and DR site (DC2).  In each data center we have one FMC (hardware) and two FTD appliances.I have configured HA between the FMCs (where the primary FMC resides in DC1) and the FTDs at each data center...

Hi,I get a strange problem here. We got another subnet from our ISP because we needed another block of IPs. Everything works fine, except one thing:  Deny IP spoof from (XXX.XXX.XXX.XXX) to XXX.XXX.XXX.XXX on interface outsideThe source IP is our mai...

I am running FMC 6.6.0 API, adding a new member to an object group it wipes out all other existing member!Would anyone know how to use PUT just to add a member and keep what exists?Thanks

Hi, I am looking for backup solution for FTD instance on Firepower device. we are deploying 2 instance of FTD on Firepower device. We are also deploying FTDv in our environment. We are using FMCv on KVM to manage these FTD devices. FMCv doesn't suppo...

Hi I need some help in creating that ACL on Cisco multilayer switch. 1) I want to allow all traffic between these subnets10.75.0.0/22 ------ 10.0.0.0/8 2)) I want to allow only http traffic and block the remaining traffic between the following subnet...

Hello, I would like to protect our ASR router (connected to the ISP and the internal network) from Firewall session table flood attacks by configuring Firewall Session table protection. One of the restrictions I found here is https://contenthub.cisco...

I just setup a new ASAv in Azure and was testing AnyConnect. I can login find but once the connection is established, it disconnects my network connection. I thought maybe it was just my computer so I had someone else try it and the same thing happen...

 Hi all,Some weeks ago I got help in this community regarding a management access configuration for my ASA and I got advise from @Marius Gunnerud  which I'm trying to follow here. I got an ASA 5508, connected to AWS cloud via AWS direct connect, whic...

Hi. I'm the network admin for my organization and we've been having some security issues on our network recently so I'm trying to investigate using wireshark. But my issue is that wireshark only captures packets that come to my device's network inter...

Hello,we use an FMC (vmware Version 6.6.0.1).I've noticed that sda7 (/var) has consistently high read rates. Between 250 and 300 MB/s. Is that normal? Which process is responsible for this and how can I determine which process it is?Thanks for the he...

Hello everyone, I am happy that I joined this community. I know that this is the best place to learn and help people, but at this moment I need some help because it's very urgent. I have 2 ASA 5505 connected by an interface. The interface is to ensur...