Network Security

Today I had a client call and tell me that their domain controllers could not resolve DNS out to the internet. They were looking at the syslog of the ASA and saw it blocking their servers outbound on DNS. I looked at it and didn't see anything and th...

I have had a site that has worked with no problem until today. I am getting Phase 1 with no problem and have multiple IPSEC tunnels established. The problem I am having is with the remote site getting to a specific host. I am getting the following fr...

I've got a PIX 515E that I've got almost all setup.I've been able to successfully connect out the internet, and connect back in from the internet to our private company network.Now the problem I have is being able to connect from inside the network t...

I am having VPN issues, but I think it could be a routing issue. We have ASA's and they are establishing the tunnel and I can get to items on the 192.168.3.Y side, but I can't get past that to my other offices. Please the attached picture. The Home O...

I have never setup EasyVPN before. I want to setup a remote user with a 871 router and connect back to an ASA5510 running the 8.0(4) code. Can this be setup to only use pre-shared keys for authentication? The user (physician) does not want any intera...

ASA5520 with ASA-SSM-20. Currently using Websense product for Web filtering. Need to find a way for Firewall/SSM to track/block users using from using outside proxy servers using public IP address on port 80.

Hi Guys ,i'm having a problem in upgrade cisco pix 515e , the follow error appear :"Can't open tftp client "Anybody know causes of this error ?thanks Jorge

Does any have a config for ASA 5580 series with 10 Gigabit Ethernet Interface Card. what i need to know is physical port labeling on the 10 Gigabit Ethernet module, so for example interface physical_interface[tengigabitethernet] slot[/port. let say i...

Dear friends,I'm trying to make a simple thing: to separate a traffic using "static" statements. However, the command is not working correctly. Please, check the attached file.Let's see the details. I'm using ASA 5510 version 8.0(4). The problem is t...

We have a pair of ASA firewalls running A/S failover. They talk OSPF with the network. Unfortunately, it seems that the secondary firewall doesn't get any routes (via OSPF or the Primary). This is causing issues with monitoring.We have temporarily fi...

Hi,what is skype protocol,purpose to allow,In which port number to allow in firewall to get skype traffic.ANy sort of help would appreciateRegardsramu

HelloWe have a Cisco ASA 5520 firewall that is setup to use WebVPN. Our users can log into our network with this and then access a Citrix web interface and launch Citrix apps.This all worked fine in Citrix Web Interface 4.5 but now we have upgraded t...