Network Security

Cisco ASA 9.1(1) I have defined a public server.  Ping from outside fails.  Packet Tracer shows the following:What is going on here?

Hi there,  I tried to block all P2P traffics on ASA5525, but the ACL that i was configured is not working well.is anybody here give me some help ?  Thank youBest regards

I use the packet tracer a lot for testing things like NAT and ACLs.  But sometimes I just want to see everything flying through the firewall like I'm looking at The Matrix.  If I choose monitor -> debugging I'm thinking I should see EVERYTHING going ...

how to fastly troubleshooting which access list rule drop specific traffic from ten thousands of rules?

Upgraded from 4.7 to 4.8, every time i go into configuration manager then it displays jumpstart page, if i close that down there are no devices shown the button doesnt respond to being clicked and we cant add devices. policy bundle respondspolicy res...

HI Everyone, Please help me on below problem R1's Loopback(1.1.1.1)==R1(10.1.1.1)===inside=====ASA transparent firewall(10.1.1.10)==Outside====R2(10.1.1.2)==(2.2.2.2)R2's Loopback. I am able to telnet from R1loopback to R2 loopback. i am unable to te...

I had a working ASA 5505 a few months ago (shut it down until recently) and now I'm trying to get my ASA to work and now it only boots into ROMMON and cannot tftp into my tftp server which has the IOS on it. I've tried moving the IOS onto disk0 and i...

Hi Guys, I managed to configure Active directory for VPN users. I could only map OU on base DN and subtree for authentication but I could not map the VPN security group I created for it.Is there anything I missed or does it only allow OU not security...

Hi,I erased my image to upgrade but my ASA was shut down half way though, so I found myself in ROMMON mode.I was able to upgrade my image once in rommon mode but I found I had an incorrect version so I went through the whole process again. Since tryi...

HiI've just unboxed my 5525-x and connected the management interface to the network. Gave it an ip address in the correct subnet but the interface does not come up.logs show:IKE port 10000 for IPSec UDP already reserved on interface managementHow is ...

I have 2 ASA 5545X firewalls in an Active/Active Failover setup.  Running 9.1.5-21 and ASDM 7.17. I'm experiencing a strange behavior when in ASDM and jumping from context to context.  After the first time I make a change to any context, and save, af...

Hey, I captured the traffic on ASA but I am not clear about the output of the capture. I want to understand what this capture result is conveying. Is this a successful connection or what? Please share your thoughts on this, below are the capture resu...