Network Security

Engage with peers and experts on network security topics such as FTD, FMC, FDM, CDO and ASA.
cancel
Showing results for 
Search instead for 
Did you mean: 
cancel

“Join

 
Labels

Forum Posts

I have setup NAT and firewall on my C1111-8w8p router and I believe it is correct. Let me know if you see any other problems here. I am still learning. But now I need to block access to the router. Port scan of public ip shows 22, 80, 443, and 1720 o...

jeremy0463 by Spotlight
  • 2640 Views
  • 23 replies
  • 0 Helpful votes

Dear guys,#inter fast 0/2#switchport mode access#switchport port-security violation shutdown#switchport port-security maximum 1#switchport port-security mac-address sticky#swtichport port-security aging type absolute#switchport port-security aging ti...

M.Sultan by Spotlight
  • 1215 Views
  • 22 replies
  • 0 Helpful votes

Resolved! Port Security

Hi i have been studying about port security how do they set Port Security in an ISP how can they handle all the MAC-Flooding attack it would be really helpful if you put your resources or any books that can help evolve my knowledgebest regards. 

Hello, would anyone be able to explain me how to configure NAT for multiple internal subnets on a 5505 firewall?I have 6 subnets 192.168.2.0, .10.0, .20.0, .30.0, .40.0 and .50.0. It's configured like this for all 6 subnets, but the address translati...

kacper25711_1-1703815809885.png kacper25711_2-1703816011171.png

Hi,I recently upgraded a Firepower 1010 from v6.X to v7.X and with that the SNMP configuration I formerly did in flex config was warning as invalid. I've done the configuration via the API numerous times and never had any issues however most of the t...

MP13 by Level 1
  • 772 Views
  • 7 replies
  • 0 Helpful votes

I have an issue with talking from subnet to subnet. I also have no interest access from VLAN3. From the ASA here are my ping results: Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.1.2.134, timeout is 2 seconds:!!!!!Success rate i...

I am trying to upgrade an FTD that is not connected to an FMC.  When I try to upload the .tar file with the upgrade, it tries to upload for several seconds and then errors out with the following error: "The method could not be performed on the resour...

rwills by Level 1
  • 445 Views
  • 4 replies
  • 0 Helpful votes