Network Security

Site A has a very large IP block (otherwise we would have used 1:1 NAT)Site B has 20 hostsSite A primarily initiates traffic to Site B; any host at site A is allowed to connectSite A has 2 network links in to Site B It will route traffic through Link...

Hello, I'd like to know if it is possible to configure a cluster with asymetric topology. for example let's say I have nodeA in Datacenter A and nodeB ind Datacenter B. Both nodes are connected to the same local LANs, but nodeA ge0/0 is connected to...

Hi, I've got a pair of ASA 5545's running OS v 9.3(3)2 and the IDS/IPS Modules are also enabled. We wanted to upgrade the OS to v.9.6(3)1 which according to the release notes should be no problem. It is though ! The Standby ASA had the image flagged ...

Hello, I just got started with the FMC1000 and I would like to use the 2nd NIC as a backup between our two distribution switches.  Linux has supported bonding from version 2.0 and I doubt that Cisco would have build the FMC on something that old. Can...

Hi there,recently i bought and installed new SSL certificates for the ASA, but the old invalid certificate still on the firewalli am thinking to delete it but im afraid its gonna cause some problemsanyone have some advise whether i should remove or c...

Hello! Due to a software appliance that is sitting behind my ASA, my logs are flooded with this kind of messages: Duplicate TCP SYN from Public DMZ: 206.81.189.10/58640 to Outside: 52.84.27.22/80 with different initial sequence number This is a legit...

We have a version 5.4.x Firesight VM managing two 5525-X Firepower services and we are trying to upgrade to FMC6.2. Plan is to: 1. Build a brand new FMC 6.2 VM 2. Manually migrate policies to new FMC 3. Schedule down time to upgrade the firepower mod...

hi, just a quick one, if adding an ASA active-standby FW in ACS 5.4, do i just create a single entry? meaning I only add a device using the 'active' IP address?

Hello "Download updates failed: Error parsing the update file. The file may have been corrupted or the download was incomplete." support.Sourcefire.com is it down tooday ? Best regard

Dear All memebers,Hope all be fine,I have a problem in Cisco ASA 5510 Firewall, when I get this firewall it was old ASA image and ASDM version, So I upload a new image and asdm and booting it, after reboot the firewall can't load it's image from flas...

l am being blocked access to the internet when using mozilla firefox, l can only access internet when using Google Chrome. Please assist.

Hello, We have 2 ASA 5520 firewalls working in active passive, below is the config for the outside interface. I can't show the real IP's so have changed them to these: 1.2.3.66 - Primary public IP 1.2.3.67 - Standby public IP ASA 5520 interface G...