Network Security

hello guys, i need help with cisco ASA 5520  i erased everything in ASA i.e Disk0, Disk1, Flash: now whenever i turn on my device it boots in Rommon mode. i need boot image files , please guide me through this process thanks in advance

Hi Everyone, I am watching live stream of videos from website. Wireshark shows multicast address of 224.0.02 but when I check my ASA I only see TCP connections from my PC no UDP connections why? My ASA is connected to ISP and it has no multicast co...

Hi all, Been trying to twist my head on this,  cant find any proper sequence of the events that will be perform when a packet enter a firewall (ciso firewall in general).. q1) is it NAT -> Routing ->  Firewall policy check  orNAT -> Firewall policy ...

What is the correct way to migrate CSM 4.6SP1 to 4.8 ?Has somebyody tried this successfully with restoring database on a new host ? 

Hi good day to everyone, currently we are working on project with Firepower deployment. Our requirement is to utilize two FP 8350 appliance in HA (Active / Standby) with inline inpspection option. I am confused about implementation with port channe...

Hello folks! I have 02 ASA 5555X in H.A and the very strange thing is happening. I have many NAT configured, but only NAT to internet stop to work and return only after reboot. ASA IOS: asa952-smp-k8.bin Anyone know something about this problem? Th...

for some reason , the connection to asdm fails  partly  context : asa5525 with firePOWER    when login , it first communicate with the firepower module and connects properly then tries to load the config of the ASA itself and  fails implying  ASDM ...

    This is the configuration.....when i accessing my web server from outside ( by entering public ip) through https its not working..only http is permited...

CISCO IPS 4240 trying to find when the OS was last updated 

I have an old Cisco Catalyst 2950 switch I am using to learn with in hopes of eventually being ready to take the CCNA exam. My current IOS version does not support SSH.  Anyone know where I might find an IOS image that does support SSH?  I have tried...

Wanted to know the latest version of IOS for the Cisco ASA 5520.  I am currently running 8.0.  What are the steps involved in upgrading to the latest version, and how/where do I download the IOS?