Network Security

The MTU of all interfaces on my PIX525 is 1500. When I plug my laptop outside my PIX, and run the test at http://www.dslreports.com/tweaks, the MTU is 1500. When I do the same test on my LAN, behind the PIX, the MTU suddenly drops to 1420. I have ...

Is there a method to block spyware as well as the abovementioned link using the Pix Firewall v 6.2. Also, what is the preferred MS Window's tool/utility to monitor packets traversing the PIX and to view hacking attempts. Thanks

We have tried just about everything and it seems like everything we try does not even affect the SYN Flood we are recieving.All it is a port 80 request for a web page, many,mnay connections, the 501 acts like we did not even set anything on it, we se...

How to filter audio and video streaming in PIX 515? Is that possible filter it by port blocking?

i have a pix 501 with 10 license.i have 10 pc in my lan- all connecting to the internet at the same time.i also have a vpn site2site. does the communicathion in the site2site takes license from the 10 license i have for my lan pc?

I need for users behind my PIX to use MSM Messenger audio and video. Microsoft says that I need a Universal PlugnPlay firewall in order to do this. I found a lot of articles on PIX UPnP, SIP and so forth but none are very conclusive as to what I ne...

We are evaluating the PIX firewall for use. From the documentation i see that its not possible for me to URL filtering using PIX. THe solution offerred is using websense ( $$$$ ) How is this done. ThanksMad

Is the pix capable of proxying DNS requests and if so, will it do any validation of the DNS response? I'm concerned about buffer overflow and invalid formatted DNS messages going into and out of my network.Thanks

hello,my customer is having the ff;users---6506---3640-----remote routersthe 6506 was also conncted to the HQ thru where the mainframe resides6506--------infrared--------HQ-----mainframewith the above scenario, the 3270 applications from both the rem...

Whats the most effiecent way to block packets with both the SYN and FIN flags set in a PIX running 6.3?

We upgraded OS to 6.33 and pdm Ver 3.0(1) on 3/16/04 and now I cannot access the firewall from my workstation.The login appears then the pdm.html starts to load but stalls. Any ideas on what I can do?

Hi,been having some frequent strange http post "attack" on my webserver... how can i disable http post method on pix? wat command to be used?Thanks,Steven

Hi,I'm running a PIX 515E, 6.1. I would like to run some port scans FROM a host on the inside against my server on the Internet. Unfortunately when the inside host starts a stealth scan - sending ACK packets instead of SYNs - the PIX blocks the outbo...

Hello Everyone!This is my first topic on this forum, I´m also a novice when it comes to Firewalls. I´m trying to setup a PIX 501 in the office using the DHCP capabilities of the PIX 501. Without the PIX the network works fine. Several computers conne...

HiI want to know which consideration should i need to have for configure in the same Router Lan to Lan Ipsec Vpn and Remote Access(Dynamic Crypto Map) Ipsec Vpn.I have read that the Dynamic Crypto map need to have a lower priority than the Static cry...