Network Security

Hi evryoneToday we have a problem with our ASA.We have tried to change some inspection values (H323). The asa tried to delete the values but cannot change them.We says that maybe it's a Bug and log out.Next logging, he says error 503. No asmd, no ssh...

Hi Experts,Please help me to setup QOS in my firewall. My firewall is ASA 5510 with software 8.6(5). My voip server is kept in DMZ and NAT'd with public IP. Users will connects to server from external network. I need to configure QOS for the VOIP tra...

Hi, I'm trying to setup a new vlan for guest wifi network using the asdm. I've got a 5510 with a security plus license so I know my vlan limit is at 100. In asdm I go to configuration --> interfaces and I've already got all the physical vlans in use....

I'm in a state of confusion at this point.  I have an ASA 5520, v9.1(4), that I'm just connecting up to a switch for direct client access.  The switch is configured to use the ASA as it's default route.  I have the NTP on the switch set up, but it's ...

 we have CX-Module with the latest version , we are facing some bandwidth issues with some users , we want to limit these users and block some websites for them  but the issue that , these Users is a DHCP , and we cannot apply a policy for  all subne...

Our customer has an ASA 5505 Sec Plus connected to their WAN with two networks behind it: the customer's internal network and a vendor-provided and -managed network.  The vendor wants to set up their own Fortigate box to provide VPN access into their...

I  have been hearing about how DDoS attacks are on the rise.My ASA only has the firewall, which, from what I read, makes it no more than a PIX firewall.Is there a way to determine if my ASA is being probed and/or being subjected to a DDoS attacks?I w...

I worked remotely with one of our clients to get a new ASA5545-X installed for them yesterday because they were having internet connectivity issues and their old 5520 was getting pounded.  However, this didn't fix their internet connectivity issues a...

Hi,I've installed an ASA-SSM-10 module into my ASA 5510 firewall but it's in "Unresponsive" state. I tried to reset and recover the module but nothing seems to work. Below you may find information about the system and details about what I did. Any he...

Hi, This is my first post in the community, so Hello everyone!Just a (hopefully) quick question,I am using a Cisco 887VA-M-K9 router to connect to my ISP via VDSL.The problem I seem to be having is that without any firewall implementation, I get 50Mb...

We recently had a vendor switch from Cisco SIP to PJSIP. After the migration it was necessary for us to add an access list to allow UDP port range 60000 65535. To the best of my knowledge this part of the reason we enabled SIP inspect several years a...