Snort mailing list archives
RE: Snort as Gigabit Sensor
From: "Hutchinson, Andrew" <andrew.hutchinson () Vanderbilt Edu>
Date: Fri, 25 Jul 2003 08:40:24 -0500
I have a couple of items on this: - I'm using Intel Pro/1000F adapters with great success. The host it is running on is a Dual PIII-850 machine w/ 256MB RAM, and sees sustained traffic in the 50Mbit/s range all day (8-5), with peaks to the 100Mbit/s range. I generally run < 1% packet loss, even running spp_portscan and a fairly complete ruleset. OS is RH7.3, 2.4.18smp kernel, compiled w/ only what was absolutely necessary. NIC driver is a loadable module though (not static). - Jason points out that Gb Ethernet is common these days, and it is. However, people needing true Gbit IDS are rarer (though not by any means nonexistant - I'm sure that there are a number of people on this list that truly need Gbit IDS). I can't count the number of times that people told me "I need a Gigabit Firewall" or "I need a Gigabit ID sensor", and then I graph traffic for a week and discover that they're pushing less than 10Mbit average through the connection in question. In one case, the group that "HAD to have a Gigabit firewall" was averaging less than 200 kb/s through their connection. Just because the fat pipe is there doesn't mean it's full. :-) Andrew Hutchinson - Network Security Vanderbilt University Medical Center (615) 936-2856
-----Original Message----- From: Jason Haar [mailto:Jason.Haar () trimble co nz] Sent: Thursday, July 24, 2003 7:06 PM To: 'snort-users () lists sourceforge net' Subject: Re: [Snort-users] Snort as Gigabit Sensor Jeff wrote:Some other posts to this thread talk about getting the maxperformanceout of a single system, up to 300-500Mbps. To get a full Gig (well 700Mbps or so anyway) of IDS traffic you'll need to load balance a server farm. Check out the Nortel Alteon Web Switches which have IDSCan I just ask a naive question? Needing to load balance is only due to the sites requiring PCI-based IDS isn't it? I mean, there are Gb IDS out there - they wouldn't need load balancers would they? Pretty scary: Gb Ethernet isn't exactly cutting edge these days - being required to go over to load balancers must really change the budget requirements... [so sayeth the lucky 100M-max Snort user ;-)] -- Cheers Jason Haar Information Security Manager, Trimble Navigation Ltd. Phone: +64 3 9635 377 Fax: +64 3 9635 417 PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1 ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet _072303_01/01 _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- Re: Snort as Gigabit Sensor, (continued)
- Re: Snort as Gigabit Sensor Jeff (Jul 24)
- Re: Snort as Gigabit Sensor Jason Haar (Jul 24)
- Re: Snort as Gigabit Sensor Jeff (Jul 26)
- DCOM exploit snort signature jason (Jul 27)
- Re: Snort as Gigabit Sensor Jason Haar (Jul 24)
- Re: Snort as Gigabit Sensor Jeff (Jul 24)
- Snort in Linux kernel mode Paul B. Poh (Aug 05)
- RE: Snort as Gigabit Sensor Banniza Robert (Jul 24)
- RE: Snort as Gigabit Sensor twig les (Jul 24)
- Re: Snort as Gigabit Sensor Irwan Hadi (Jul 27)
- Re: Snort as Gigabit Sensor Marc Quibell (Jul 24)
- RE: Snort as Gigabit Sensor Banniza Robert (Jul 24)
- RE: Snort as Gigabit Sensor Hutchinson, Andrew (Jul 25)
- RE: Snort as Gigabit Sensor Kreimendahl, Chad J (Jul 25)
- RE: Snort as Gigabit Sensor Kreimendahl, Chad J (Jul 29)
- Re: Snort as Gigabit Sensor Chris Green (Jul 31)
- Re: Snort as Gigabit Sensor Frank Knobbe (Jul 31)
- Re: Snort as Gigabit Sensor Chris Green (Jul 31)
- Re: Snort as Gigabit Sensor Frank Knobbe (Jul 31)
- Re: Snort as Gigabit Sensor Chris Green (Jul 31)
- Re: Snort as Gigabit Sensor Frank Knobbe (Jul 31)
- Re: Snort as Gigabit Sensor Chris Green (Jul 31)
- Re: Snort as Gigabit Sensor Chris Green (Jul 31)
- Re: Snort as Gigabit Sensor Phil Wood (Jul 31)