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

FMC Deleted Rule by itself !?

We recently had a major issue where the FMC deleted a rule apparently by itself ! FMC1600 physical device running 6.6.1Senario, I deleted some out of date office IP's & associated rules. Applied policy to FTD's & a major incident became evident. Afte...

ida71 by Beginner
  • 2 replies
  • 0 Helpful votes

5508X ASA can stop all types of DDOS attack

i am using  ASA 5508X is this device  capable to stop all types of  DDOS attack? like Volume Based AttacksProtocol AttacksApplication Layer Attacks or we go for some other device like arbor Ddos Protection for datacenter . please suggest ...

BFD peer is down

Hello,I found in cisco documentation that BFD is not available on OSPF, only BGP.So I use BGP protocol on my fw FTD 2130.I use FDM to configure this FTD fw. In the BGP part, I activated this line:"neighbor fall-over bfd single-hop" When I run...

h.dam by Beginner
  • 2 replies
  • 0 Helpful votes

Downgrade SRU Update on FMC

I am looking for a way to downgrade SRU Update on FMC. I have two FMC, one has higher version than other. Due to the requirement, I have to downgrade the update to match with other. I cannot upgrade the lower version. I do not see an option to downgr...

Resolved! FTD upgrade problem

I recently installed a FMCv on VMware (v6.6.1) and 2x 2110 FTD units which came with I expected updates for the 2110s to appear in the FMC so I could upgrade to 6.6.1. It keeps saying "no updates available".  FDB and GeoDB updates are workin...

Resolved! Firepower 2110 ASA IMAGE- services using management interface not work

Hi everyone! I am trying to use RADIUS,DNS and NTP Services using Management Interface from Firepower 2110 ASA image.  This interface has communication with the corporative network where the respective Servers reside.  Below the configurations from F...

URL Filtering Automatic Feed

Hello,I was just wondering if anyone knows what URLs are reached out to by FMC for URL filtering automatic updates as we are getting a URL Filtering Download Failure we are using from documentation it seems like Automatic URL updates will us...


Hello,  I have a PIX-515E and I will install a new Firepower managed locally.  Is there any possibility for automated migration or the only solution is the manual one.  In the manual what should I be aware of? Thanks and regards, Konstantinos

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