IDS mailing list archives
Re: IDS deployment on a Cat6500 series & which Snort box?
From: "James Fields" <jvfields () tds net>
Date: Thu, 27 May 2004 19:21:26 -0400
The page you list is for the original, version 1 IDS module. The version 2 module is quite a bit different: " 600 Mbps with 450-byte packets Supports up to 4000 TCP connections per second (new arrivals) Supports up to 500,000 concurrent connections 100% alarm rate Catalyst performance not affected by additional VLANs or devices in the Cisco Catalyst chassis Fabric Enabled"
From this link:
http://www.cisco.com/en/US/products/hw/modules/ps2706/products_data_sheet09186a00801e55dd.html The numbers expressed above are for a sensor with ALL signatures turned on. ----- Original Message ----- From: "Tony Carter" <tcarter () entrusion com> To: "Carles Fragoso i Mariscal" <cfragoso () cesca es> Cc: <focus-ids () securityfocus com> Sent: Thursday, May 27, 2004 10:08 AM Subject: Re: IDS deployment on a Cat6500 series & which Snort box?
A little late but... according to Cisco's site ( http://www.cisco.com/en/US/products/hw/switches/ps708/ products_data_sheet09186a0080134014.html ) it can only # Monitor 100 Mbps of traffic # Approximately 47,000 packets per second, with a new flow arrival rate of 1000 per second -Tony On May 23, 2004, at 2:08 PM, Carles Fragoso i Mariscal wrote:Hi, A customer of us is evaluating an outer IDS deployment on its Internet Data Center (IDC) core network which consists on a layer-3 enabled Cisco Catalyst 6500 series. Its network traffic is under Gig speed but over >200Mbps. They have been told that the best choice would be a Cisco IDSM2 which is a switch-in blade IDS because of it is a network-node IDS and because IOS provides some kind of L2/VLAN ACL's which could allow them to capture traffic from/to selected sources/destinations to IDS (for instance: critical hosts or subnets). Cisco IDSes seems not to be as well-featured as other products: Netscreen IDP, SourceFire, ISS Proventia etc. I have been documenting on that and it seems that also exists the possibility on Cat6500 to do L2/VLAN ACL's to forward matched traffic to a span port, that could open the chance of using any IDS on that port instead of switch-in only solution. - Has anyone a similar deployment to described that could provide their experience on that? - Any input regarding IDSM2 experience could also be useful. They have also asked me if an open-source solution such as Snort could deal with Gig traffic and which computer platform would be necessary? I have seen on NSS Group report that a dual Xeon CPU with 1 Gig mem minimum for Snort 2.x branch is recommended. I imagine that the NIC data bus with main board should be big enough. - Any recommendation on which architecture could fit their possible needs? Thanks in advance guys for your help, ----------------------------------------------------------------------- ----- ---- Carles Fragoso i Mariscal Anella Cientifica RREN Incident Response Team (ERIAC) - Incident Handler Communications and Operations Dept. - Supercomputing Center of Catalonia eMail: cfragoso () cesca es Phone: +34 932056464 Fax: +34 932056979 iDBA: 13041*CFM ----------------------------------------------------------------------- ----- ---- ----------------------------------------------------------------------- ---- ----------------------------------------------------------------------- ------------------------------------------------------------------------------
-
--------------------------------------------------------------------------
-
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
Current thread:
- IDS deployment on a Cat6500 series & which Snort box? Carles Fragoso i Mariscal (May 25)
- Re: IDS deployment on a Cat6500 series & which Snort box? Tony Carter (May 27)
- RE: IDS deployment on a Cat6500 series & which Snort box? Carles Fragoso i Mariscal (May 28)
- RE: IDS deployment on a Cat6500 series & which Snort box? Gary Halleen (May 28)
- Re: IDS deployment on a Cat6500 series & which Snort box? James Fields (May 29)
- <Possible follow-ups>
- RE: IDS deployment on a Cat6500 series & which Snort box? Carles Fragoso i Mariscal (May 26)
- RE: IDS deployment on a Cat6500 series & which Snort box? Gary Halleen (May 26)
- Re: IDS deployment on a Cat6500 series & which Snort box? Tony Carter (May 27)