Network Security

We’re seeing a situation right now that seems to happen right before our firewall reboots itself. This is an ASA5540 running 8.2(1)11 code in an active/passive failover setup. 1.       The firewalls CPU is around 50%, and is normally around 4%2.     ...

Hi all,Could anyone help me to get the step by step procedures for NAC upgrade from 4.1.3 to 4.7.2. I know that we have to upgrade to interim release 4.5(x) then to 4.7.2.Thxswami

I'm in over my head with this Cisco router we have (881w).  If anyone  has a recommendation for some dummy-level reading, I'd appreciate a link  or title.  Cisco documentation presumes a level of knowledge which I  don't have.  My specific problem ...

Hello,I'm try to figure out how to setup a good security layout planning a mailserver in a DMZ. Point is, I don't understand is the following. Most MS Exchange mailservers are configured on the same server with the active directory. As know, these ar...

HI All,I am looking for a solution that can do all the Gateway webcontent filtering/Antivirus/Antispam/Malware functions. This solution will be used for 300 employees. Any good cisco or non-cisco sloution name will be more helpfull that should be cos...

HiI use the default one (https://198.133.219.25/cgi-bin/front.x/ida/locator/locator.pl) on my 7.x IPS system and keep getting  "http error response: 400" for some time now. Should I use a different URL or may I have overlooked another problem?Regards...

Hi all!I have an ASA 5505 (running 8.0.4) that dials into the Internet via DSL using PPPoE and leases a dynamic address from the ISP. Every 24 hours the ISP enforces the renewal of connection and with this the public IP address. I'd like to control w...

I have installed Cisco VPN to connect to my university server. As soon ask I connect to the VPN my system (XP-SP3)crashes (Black screen) and proceeds to restart. I've been on this forum and and picked up some tips (like unchecking Deterministic Netwo...

Hi All,I am attempting to forward port 80 and port 25 from an IPCop FW connected to Internet via the ADSL router port and my Cisco FW connected in the protected area (Green Zone) of my LAN. A similar diagram of my network is depicted in the Cisco lin...

I have a pair of 5520's running OS v. 8.2.(1) in a LAN based active/standby failover configuration.Over the weekend, some failover testing was performed and we found to our dismay that the ASA configs were not in sync ! We've checked all interface lo...

I have an ASA, with the same security level in all interfaces. I define an ACL in the interface A. When I origin a new connection from interface B to web server (in side of interface A) , If I try to deny this access in the ACL apply at the interface...

When i install asdm imageasdm-52456.bin on an ASA5520 runningasa708-k8.bin IOS i get an error message when ipoint to the image stating that it is set, but is not a valid image. can anyone help?