Network Security

We provide enterprise VOIP to a group of customers with our Callmanagers located at two Network Operations Centers. We are in an IP only environment (no PBXs, gateways, etc). Both NOCs and Callmanagers reside behind a firewall. All sites connect to t...

Hi All,I am getting below error in NAC OOB VG agent login;"Login Failed! OOB Error: connected device <client_MAC> not found. Please contact your network administration."Please help if someone came across such situation and have solution.Hemen

I am trying to find out a way to restrict VPN users to specific resources inside the corporate network. Before, we had a VPN 3K concentrator and by using profiles we were able to restrict access to specific networks/resources. Now with the ASA 7.2 an...

Hello,I have a 871w 12.4 (11)T1. I am trying to setup a linksys spa942 phone with Trixbox v1.2. Calls last for 30 seconds then I get one way audio out. When I disable the firewall it works just fine. I've been through 4 cisco engineers and it's still...

When a bringing up a new sensor in a network typically how long should the sensor be allowed to baseline or soak for before tunning begins? Does cisco recommend a specific time period?

I have a client which we connect to through the FWSM, this client now needs to send us some multicast traffic. We currently use multicast traffic heavily inside our network just not through the FWSM....how would I enable our servers to receive multic...

Hi,Like I said in the title, we have a PIX 525 running version 6.3(5) and we have the problem described in Bugid CSCsb34758:connection to DMZ fails after PIX authentication sessionWe had version 6.3(4) before the upgrade and didn't have this problem....

I am in a job where expansion has happened quickly, and we are in the process of upgrading our network, and with time constraints etc we are forced to use internal heads to figure things out.We know we have to upgrade our internal equipment and one t...

I have multiple (let's say about 50) remote sites which have an ASA 5505 at them connecting via a ipsec vpn connection back to our main office. Most of the time, these connections work great, but it seems like within the span of about 1 week, at leas...

Hi,I need to create this network 192.168.248.0 255.255.254.0 on my asa.when i created it with ASDM, by default it created with the mask 255.255.255.0,How can i change that default mask to the correct i need ? (255.255.254.0)

We have an ASA 5550 with 8.0.3.19 with threat detection active. Regularly we have Scanning Alerts in our Log: [ Scanning] (733100) drop rate-1 exceeded. Current burst rate is 10 per second, max configured rate is 10; Current average rate is 4 per sec...

Hi weare trying to convert the configuration to an AsA firewall, but when we do that we can not see the ACL's within the gui. Can anyone help

I am facing a problem with ASA for providing Application connectivity to intranet hosts. The details are explained below:The Network structure is as follows:- Intranet gateway router = 172.16.150.1- ASA outside interface = 172.16.150.3- NAt'ed IP to ...

Someone know if there is pix or asa emulator?Thanks