Network Security

Hi, I have an ASA 5505 Firewall. Problem is every day or so it blocks internal users from internet access. When I log on to the firewall itself I can access the internet and the LAN. However until I restart the ASA no user can access the internet. I ...

Hi,Some of our sites are under constant attack with TCP Syn/Ack i.e Syn followed by an Ack and no Get HTTP. Would want the Firewall to hold the traffic until there is a geniune payload. Plz Help.Here is the sequenceAttacker sends SYNServer sends SYN/...

We have VPN IpSec tunnel setup between two locations. Customer initiates connection it appears getting connected:ipconfig shows correct host/gateway IP addresses but no traffic being passed through.

We are trying to work out a way to upgrade a standby ASA through CSM. Has anyone been able to do this? I have some Flexconfigs created to copy the code and reboot the ASA, but they only work on the primary ASA.

Hi, We have ASA 5505 running for our Production n/w and using 4 V-lans which are configured on ASA. Now we want 6 more v-lans to be added but we cant configure on ASA because of limited interfaces. As I know we cant make sub interfaces on ASA 5505 mo...

Could anyone point me in the right direction for usable information, for a beginner, on how to setup/customize the SSL VPN Portal?

Hello all,I have created 3 vlans on my ASA 5505, 5,10,15,and 20They are on Interface 0/4 and trunked to a switch port which is also configured as a trunk. All works great....EXCEPTI have a printer on VLAN 20 (192.168.20.15) that folks on VLAN 5 and 1...

I am in the middle of a migration to ASA from Pix. I have an old IDS 4215 active the Pix side that now shows feed inactive from sensor. Alarm context is >> certificate expired for cisco secure ids event subscriber java.security.cert.certificateexpire...

We have an ASA 5540. Is there a way to transparently redirect web tcp/80 request to two separate internal SQUID web-cache servers?Do you have white papers on this?

Hi everyone,I hope someone with extensive experiences with Cisco Pix/ASA can tell mewhat the purpose of this command:fixup protocol sqlnet 1521-1526fixup protocol http 80policy-map global_policy class class_sqlnet inspect sqlnet inspect httpI have ru...

Hi expert,Grateful if the expert could advise on it. 11. If there is one DMZ, does the extra default route (item a) need to be configured for the DMZ?a. route dmz 0.0.0.0 0.0.0.0 210.1.3.1 (for DMZ)b. route outside 0.0.0.0 0.0.0.0 210.1.3.1 (for outb...

Hi folks,I recently started working in a place where the network was a mess and I want to make some changes for a best performance and management. We have 2 800 series running ADSL where I want to configure VPN tunnels (GRE) pointing to our remote si...

Hi,I have a question about ASA in transparent mode. Would it be possible to deploy ASA in transparent mode with 2 different VLANs but only 1 subnet as attached file? I would like to deploy like this because there are 2 core switches and also 2 server...