Snort mailing list archives
Re: Quick questions about recieved packets
From: Joseph Nicholson <wjnicholson () gmail com>
Date: Wed, 26 Oct 2005 10:05:10 -0500
I am running the following hardware: 3.0 Ghz P4 socket 478 CPU 200 GB SATA HDD 2 GB PC 2700 RAM Board specs are here: http://www.supermicro.com/products/motherboard/P4/E7210/P4SCE.cfm I tried sending the Alerts to a unified alert file. I took a class on Building and Operating Snort back in March ( Thanks again Alex!!!) and learned that the Binary output was the fastest way for Snort to process the information since it does not have to covert it from binary to clear text for me to read. If this would have worked I would have found a way to convert it back to Syslog for my needs. Unfortunately I am dropping about the same amount of packets no matter how I output the Alerts. Here is the interface stats. I am taking a ton of info in each second. GigabitEthernet0/24 is up, line protocol is down (monitoring) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 213264000 bits/sec, 28623 packets/sec I really am starting to think that I may need more than one sensor for this segment of traffic. I am going to lower the number of ports I am monitoring to 1 and see how that works, then go to two, and etc... until I find the right balance for this one sensor. Currently I have 4 sensors built up for different segments of my network. I can put all of these on this part if I have too for testing. On 10/26/05, Richard Bejtlich <taosecurity () gmail com> wrote:
Joseph Nicholson wrote:This is my core switch and brings about 5 different network segmentstogether...The monitor port is a Gigabit port and the monitoring ethernet port isrunningat a Gigabit also.Hi Joseph, Do you have an idea of how much bandwidth you are watching on this SPAN port? Can you share some specifications for your hardware -- RAM, PCI bus, etc.? Have you tried just sending alerts to an alert file, for testing? Thank you, Richard http://www.taosecurity.com
-- Joseph Nicholson
Current thread:
- Re: Quick questions about recieved packets, (continued)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)
- Re: Quick questions about recieved packets Murali Raju (Oct 26)
- Re: Quick questions about recieved packets Bill Parker (Oct 26)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)
- RE: Quick questions about recieved packets Joshua Berry (Oct 26)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)
- Re: Quick questions about recieved packets sekure (Oct 26)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)
- Re: Quick questions about recieved packets sekure (Oct 26)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)
- Re: Quick questions about recieved packets Joseph Nicholson (Oct 26)