Network Security

This is a somewhat broad question, but i am going post it anyway and see if anyone can comment, as i feel it may relate to an incorrect NAT statement. I have a telephone system sitting behind the ASA, which i've NAT'd inbound and outbound to an inter...

I have IPS 4255 with IOS 5.x,it is monitoring My internet zone traffic. In my event viewer i m seeing few IPs are consider as attack towards my global IP addresses that are not being used in my network. These IPs are spare global IP for future use. A...

I am using a 2811 router with 12.4(15)T5 Advanced IP.When enabling inspection on my HTTP out rule, several common websites do not funcion properly. This is not a problem on our other 2811 routers not using Zone-Based firewall. One example site that c...

I have a client which we connect to through the FWSM, this client now needs to send us some multicast traffic. We currently use multicast traffic heavily inside our network just not through the FWSM....how would I enable our servers to receive multic...

Hi, I want to configure Read-Only and Read-Write String in Firewall 5520. I do not want to use default strings. Please help as I am not getting option for R-O & R-W strings with this model.

Hi, We are using Site to Site Tunnel between India and DC but for last two days we have been experencing outage from DC tunnel and from India all tunnels are well connected and it happens only for 15 to 20 minutes. Can anyone tell me which of the ste...

Hi, we have a problem with a problem with an alcatel device.the problem is that when we telnet (from the management server) to the device everything is ok, but when we give a particular command the results never come back through the telnet console! ...

Hi All,Is it possible to have a VPN connectivity on the Nated publuc ip.ThanksMadan

Hello,Does anybody know if there is documentation regarding the recommended signatures to be activated depending of the network service being deployed?Let's say that I have several servers behind a firewall, therefore, in theory I would only need to ...

Hi,We are desinging a new network. In this network we placed 2 cisco asa 5510 as first line of defense firewalls. My question is, i received a request to place an ips in this design. Is it advisable to place an AIM in the cisco 5510 or do i need an n...

Has anyone written a extra protection policy for Linux DNS servers.I want to increase protection to my BIND on our Linux servers.

Hello, I was wondering if someone could please tell me if there is any sort of traffic or timers that may reset the vpn idle timer. I have tried to set it to disconnect after 5 minutes, but when I leave the session idle (few hours to overnight), the ...