Network Security

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I learning how to set-up firewall and came accross such a problem when trying to connect through web-browser to DMZSERV : 3. The packet is coming from an outside network. The device looks up its NAT table for necessary translations. 4. The packet is ...

Hi, I'm looking for documentation with general tips on how to optimize FTD performance like using prefilter for trusted traffic, disable inspection on encrypted traffic etc. I'm working with a customer that have performance issues a few days every ye...

Hi Community,i do have an ASA 5516 and can see an active connection from the source adress 10.88.72.11 which is causing several GB of ICMP Traffic to one of our internal IPs.The strange thing is, I cannot find this address either in real-time log or ...

DanTee by Community Member
  • 861 Views
  • 2 replies
  • 1 Helpful votes

I have Cisco ASA 5505 firewall on wich I wanted to install pfsense. First problem I had was to small CF(128MB) so I went and bought CF with 8GB of space. I used old computer to install pfsense on this CF, and I then noticed that pfsense is using ZFS ...

lukazabav by Community Member
  • 8689 Views
  • 6 replies
  • 0 Helpful votes

I have a FirePower 1100 for my home lab and for some reason, it lost DNS connectivity and lost registration. I did not notice and now I can't deploy changes. I connected to the CLI and tried to ping from system. When I try to ping from system I get t...

emurray by Level 5
  • 1143 Views
  • 2 replies
  • 0 Helpful votes

Hi to all,i am facing the following problem, please refer also to the png attached (i also have some information on the png attached).An IPsec VPN 2811 router tries to establish an IPSec vpn with an FTD. I have setup this config on the lab and i noti...

Ditter by Level 8
  • 2230 Views
  • 12 replies
  • 0 Helpful votes

Hi everyone,I have this basic scenario:(LAN) --------- (ASA) ---------- (DSL Router) ---------- (Internet)I am able to ping the DSL Router from the LAN but not vice versa. Is it a common case with the ASA deployed in between or am I missing something...

Rolitto by Level 2
  • 13307 Views
  • 16 replies
  • 0 Helpful votes

Hi All,Need your suggestion is fixing the login to ASDM. Getting Login Failed error even the same password works for SSH and also to download the launcher from https://ipaddress/admin. But when i login from ASDM getting Login failed error.I went thro...

ssan239 by Level 3
  • 2487 Views
  • 8 replies
  • 0 Helpful votes

Hello Folks, I have a pair of ASA5516 with HA mode, ISP provides a high-speed WAN 500Mbps up/download, while doing some speed tests recently we noticed that all our tests from the inside network are not bypassing 100mbps, I checked all inside/outside...

AirSail by Level 3
  • 4393 Views
  • 20 replies
  • 0 Helpful votes

During the FTD HA upgrade from FMC, if first standby is failed /corrupted during the upgrade ,will FMC will  try to upgrade other devices in the failover pair or will abort the upgrade?.

nurairtt by Frequent Visitor
  • 768 Views
  • 2 replies
  • 0 Helpful votes
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