Network Security

We have a Cisco PIX 515E with pix ver. 6.3(4). We are receiving continuous SYN packets for one specific server. Can we control this attack by PIX 515E appliance. Pl advise how to do this if possible by PIX 515E.Thanks in advance.Regards,Raghavan

We use Firegen to generate reports from our syslogs and today I noticed the attached messages. Any suggestions on what might me causing them?The first IP that is marked out is on our DMZ and is the address of our SMTP mail server. The second marked o...

HelloI am currently terminating my ISP's PPPoE connection (static IP) on my Cisco Soho77, and then using an internal IP on my firewalls outside interface and therefore double natting. I dont have a problem with this (makes me feel moer secure) but wa...

Does the ASA do inbound PAT on the outside public IP address?

Hi,Currently I have a Server with Two NIC.On 1st NIC I have LAN IP addressOn 2nd NIC I have 2 Public IP addressNow I want to put this Server in the DMZ, but still needs to have 2 Public IP address as a pre-requiste for Microsoft Application.....One P...

Hi guys,Just wonder if you can give me an idea how to sort out a situation when I have 2 subsequent subnets of /29 bits each, one of them is "in front" of PIX515 (OS ver. 7.1) and the second is "behind". For some reason when I asked ISP to just speci...

Hello,I have a ASA 5505 at remote office, and a ASA 5510 at central office.Site to Site VPN is configured on both ASA.All is working, but sometimes VPN tunnel goes down.ASA 5505 still have Internet connection, but the running configuration has change...

Hi friends,A strange VPN issue with PIX 7.0 though not critical.There is a site to site VPN tunnel between PIX and a Cisco IOS router. The tunnel should come up upon initiating traffic to a host on port 22. When we telnet on port 22 to the host defin...

I want to place a stateful inspection firewall in front of one of my servers (between it and my LAN) and also create a VPN between the firewall and another firewall on another subnet within my network. Can the 501 accomplish this? I am going to purch...

I always have problems with password recovery on a pix. I follow the instuctions below, but always get confused.http://cisco.com/en/US/products/hw/vpndevc/ps2030/products_password_recovery09186a008009478b.shtmlI want to connect to the pix with a lapt...

I have a SSL-VPN licensed ASA and an Un-licensed one that I am trying to set as failover. How can I UN-license the primary from ssl vpn. It will not replicate the config unless I do

Is there a management suite available out there from Cisco that allows to manage VPN 3000 concentrators in large enterprise networks? We would like to do a minimum configuration of the devices via their build-in CLI oder webinterface and then import ...

Hi all,i've got strange trouble with pix 535 [6.3(5)]:preface, ACL are ok.so....from inside to DMZ i've got a log like this:%PIX-4-106023: Deny tcp src inside:10.xxx.xxx.xxx/46353 dst DMZ-fearehu:10.yyy.yyy.yyy/3389 by access-group "ACL-INSIDE" but f...

I have a PIX 515E with a privately numbered inside interface and a publicly numbered outside interface. I am doing a combination of static NAT for inbound connections for different services and PAT for outbound connections for internal hosts. The pro...