Network Security

Recently installed an ASA5505 for a client.  They have Verizon DSL (7mb down, 384up package).  So my config is Verizon (Westell) DSL modem connected to e0/0 (VLAN2) of ASA.  From there I have e0/1 (VLAN1) connected to a 3COM 2250 Plus 50 port switch....

We deploying a new sourcefire to replace a legacy firewall and proxy. We are having an issue with the way the Sourcefire is seeing the redirected traffic to the module.When traffic is passing through the module it looks as if web traffic is being ori...

Hi all, I have configured an anyconnect vpn through VPN wizard. i can connect to VPN server through anyconnect software and getting user login prompt too. but when i enter correct username and password, it shows message ' Anyconnect was not able to ...

Is there a way to deny large file transfers for common TCP protocols (SMB, NFS, FTP, SMTP, RDP)?  Say for files of size 10MB, or 100MB? I know this is a very general question, but is there a way to stop file transfers once a certain threshold is hit...

Guys  I am get stuck on this issue, i have asa 5505 which was working more than 4 months, after power recycle  the firewall is not booting now, it gives the below error. i have tried to upload the new image however the story is same. can some one hel...

  Safeguarding your network assets and data from today’s threats isn’t easy. You need detailed visibility into all your network layers and resources. With the Cisco Firepower solutions, that’s what you get. This visibility provides the contextua...

I am attempting to setup our DR environments and the only thing escaping me at this moment is the best way to replicate ACL and NAT objects from one site to another. Basically, we have two sites, both of which run external resources, so it is not the...

Hello guys, I'm having a masive pain with this asa 5512. It's my first time using one and i can't figure out too much about it's functionality. So what I need to do is to connect the just-arrived MyPBX to one of our servers and make them communicate...

All, I have a quick question which is a source of discussions at the office.  I contend that when VLAN information is sent through a Site to Site Connection and is natted, there is no need for the other end to have the same vlan information on firew...

Hello I have a appliance getting the below error message during a upgrade attempt.   800_post/020_modify_users_and_roles.pl

Hi, We are running the ASA 5525, 9.4.2 with cluster(Master/Slave). we found that some of the voip subnet using phones are not getting the ip address from dhcp server we did the debug on the firewall and found below errors. this issue is not constant ...