Network Security

Hello all i am getting the following error in the activity log Asymmetric NAT rules matched for forward and reverse flows denied due to NAT reverse path failure. I am connected via Cisco ASDM 6.4 for ASA  Here is the error:5Feb 02 201507:54:03 208.10...

I have an asa running 9.1(2) when I show access-l the object-groups don't expand properly.  Is this a feature of 9.1 or has some feature been enabled.Here's an example:access-list access-INSIDE-in line 18607 extended permit object-group tcp_udp objec...

Hi thereI have a new ASA Firepower setup with six test-clients running on it. Basic setup and policies in Firesight seems ok. Policies are blocking as expected.But Firesight health monitor is in critical state on the Module Discovery Event Status wit...

Hello All, Looking for some advice. I'm looking to upgrade 2 5520's That were an active/standby failover pair until a recent SSL license application caused a mismatch.The devices are currently running 8.0, i would like to upgrade them to in order 8.4...

I am generating configuration files for customer equipment from a perl script and everything works fine, but I do not feel comfortable embedding passwords in plain text. I am expecting that the customer may have to load some of the configs and it doe...

Hi Any suggestion help High CPU due to dispatch unit in cisco ASA 5540ciscoasa# sh processes cpu-usagePC         Thread       5Sec     1Min     5Min   Process0805520c   ad5afdf8     0.0%     0.0%     0.0%   block_diag081a8d34   ad5afa08    82.6%    8...

Hi all:We have a small office (15 users) protected by an ASA 5505 running 8.2(5).  The problem we are having is downloading large files from to Office 365 (really SharePoint in MS cloud).  They get interrupted and the connection is dropped. I have lo...

Hello experts, I have a current requirement in that we are to deploy a pair of transparent firewall (active-standby). The active firewall sits between a core switch and an access switch. There is an etherchannel pair (gi0/0 and gi0/1) connecting from...

Hello, We had an issue the other day where replication through our ASA caused the ASA to hit is maximum throughput of 450mbps.  We tried to set the replication software to use less bandwith but the software takes no notice.It uses port tcp 3650 and r...

I have a VPN tunnel going between a Cisco ASA 5520 and a Dell SonicWall on the other end, but the VPN tunnel won't stay up. The only way I can restablish any activity is to send a ping from the ASA to the SonicWall. But the SonicWall can't re-establi...