Network Security

We have an ASA5510 with the IPS ASA-SSM-10 module installed. All is working well except event notification. When sending a test email from the SSM IPS, we get the error "could not connect to SMTP host". The Exchange SMTP host does allow traffic from ...

Hello, We have recently migrated a set of Oracle eBiz DMZs from a FWSM to Cisco ASA. There are intermittent disconnects of service between the Oracle Concurrent Connection Manager and the Oracle DB servers through the ASA. General ASA health checks,...

I recently purchase an ASA 5508-X firewall.  It currently has ASA version 9.5(2) on it, but it need to 9.5(2.2).  I've gone out to the Cisco website and used the following path: Downloads Home > Products > Security > Firewalls > Next-Generation Fire...

Hi All, I've tried to search for a solution to my problem but I doubt I'm anywhere close to searching for the right terms.  I'm a noob when it comes to the ASA5506 unit we have but I have got it setup how it needs to be with one exception. DNS. At th...

Dear All, i have a problem in DNS Forwarder DNS server forwarder is not resolving 8.8.8.8, 4.2.2.2 or any global IP, DNS server is inside network, internet traffic is going through proxy which is in DMZ,DMZ interface=> rule "source (Proxy IP- 10.1.10...

Hi, I have a Cisco 5506X ASA with firepower fully licensed. I have URL filtering category Pornography/Adult any reputation set to block. Now some porn websites get blocked but some don't. When I'm in the ASDM looking at the monitoring of live connec...

Hello, I have a scenario where a Server A (IP x.x.x.x) on the outside interface of ASA (5525x IOS 9.6) is configured to send TCP and UDP traffic to Server B (IP y.y.y.y) on the inside. Using static routes I am able to successfully test connectivity ...

Dear All, kindly tell me how can i use ACL for network filtering on all uplink and switch ports, below observation and recommendation from security officer  Observation During our review we have noted that 62 network interfaces on CSW01 had no networ...

Hello, I'd like to ask you what is necessary to configure for processing industry standard X.224 (ISO 8073) protocol.We have trouble with this type of communication protocol and scenario is for each tcp flow like this:- TCP is established between cli...

Hello, We are experiencing problems with the timeout connections. Several connections are not being closed in the timeout period, causing an overflow occurs the number of connections supported by the equipment. Note that UDP is TIMEOUT in 2 minutes ...