Network Security

Engage with peers and experts on network security topics such as FTD, FMC, FDM, CDO and ASA.
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Forum Posts

Resolved! Access Control Policy Rule

HiSo hope ive been getting this right if i want to block traffic to and from the same addresses I creat a rule it would be as the below source ANY   destination ANY  source networks  destination networks  Source ports Any  Des...

benolyndav by Participant
  • 3 replies
  • 0 Helpful votes

Unable to reach internet from VLAN

I'm trying to ping from the VLANs in the HQ network to PC in the user network but it fails. I have triple checked the static routes and eigrp as well as nat on the HQ router but still can't figure out what's wrong I'm able to ping from H...

Encrypt shared key with AAA server

Hi,as the title of my posts says, our security group raised concern over this topic.The problem is that during a "show run" of the device, the tacacs+ shared key is encrypted with mode 7 which means that it is possible to get the authentication key r...

ThomasD86 by Beginner
  • 1 replies
  • 0 Helpful votes

FMC/FTD Snort Question

HiSo received this info from  and am wondering how I check we have received these on our FMC devices.???  Cisco Talos has released the following Snort SIDs to detect exploitation attempts targeting CVE-2021-44228: 58722 - 58739 and 300055 - 300057.  ...

benolyndav by Participant
  • 10 replies
  • 0 Helpful votes

4100 with FTDv HA Pairs

Hi,We have a few 4100 series appliances (6.7) where we have 3 to 4 logical FTD devices. The FTDv devices are configured in HA pairs running 6.7, where primary is on one 4100 appliance and secondary is on another 4100 appliance. We ran into issue wher...

Resolved! FMC Feed through online csv file

Hi all So I can see on github that there are list from MS sentinel that contains a lot of ipes that are trying to gain access for log4j...The list gets updated all the time, but is there a way where I can make a security intelligence feed that keeps ...

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Enabling SecureX in FMC 7.0

Hello, I have been looking at SecureX and was wondering if it restarts the FMC or the FTD's when checked. I would think not as it should only care about the FMC and what it collects correct? I just don't want to have to put in an outage request to cl...

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