Network Security

There are all kind of nice features regarding TCP port randomization, however with these new DNS problems starting I'm curious about UDP port randomization, for DNS especially.My internal recursive DNS servers were vulnerable to this new port randomi...

Hi, My NIDS Version is 4.1 .I wanted to upgrade it to version 6.i am having the license for tht version 4..Can i upgrade without procuring new license from cisco

I have a Cisco IOS firewall configured and customer would like to know what traffic inbound is using the most traffic.Customer received report from service provider that shows high traffic utilization on their internet connection and customer wants t...

Hi,Can anyone tell me what IP inspections really inspect?I have 2 sites connected through site-to-site vpn. ACL allows ip packets going through both sites. But the application level firewall still inspect the packets and droppes smtp packets between ...

Greetings,I need to set up a VPN client to be able to access ONLY a single host on multiple ports.

I get a 1 milisecond time out when a failover occurs. I feel this will affect connectivity for users. Should i be concerned I have configured the following: interface GigabitEthernet1/3 description LAN/STATE Failover Interface speed 1000 duplex full ...

Cisco Security Manager 3.2 SP2ASA5540 V7.0(7) single context, routed modeUsing the Device View to add an ASA, enter address, name and credentials and recieve error messge "unable to connect to the device. Device connectivity test between the device a...

Hello!Can someone tell my why the Implicit Rule overuns the a normal ACL. You can see it in the attachment.In the Syslog Message you can see the deny but in the config it is a allow????

we have dual 6500 switches with FWSM installed. We have configured rapid spanning tree as well. Two VLANs were created within FWSM. Everyghing woirks fine with single switch.But soon sfter second switch is connected, the ping traffic between VLANs ar...

could someone please tell me if there is a redundant power capability for the Cisco ASA 5520 series?

Dear Expert,Anybody please help me !!!Please see in the attach file.so in the attach file all my client can access internet and can send email/receive but sometime they cannot send out i mean that in 100% they can send 80%, 20% cannot send out....and...