Hi all,
The top leader in the "Magic Quadrant for Network Intrusion Prevention Systems
Appliances, 2H06[1] -in addition to mentioned Cisco and McAfee products- are
able to decoding the dot1q from ethernet frames to analize data information
encapsulated in differents VLANs. I've perform an recent study about this
feature in main IDS/IPS products:
* 3Com/TippingPoint Intrusion Prevention Systems
================================================
http://www.tippingpoint.com/pdf/resources/datasheets/400918-005_ipstechspecs.pdf
Supported VLAN
Feature:
"Protocols/Applications (partial list)
* VLAN "
* Sourcefire/Snort
==================
It has a 802.1q decoder which supports inspection of VLANs using low
comunications layers from OS (Linux kernel and others *nix)
* IBM/ISS
==========
Proventia Intrusion Prevention System
http://documents.iss.net/literature/proventia/ProventiaNetworkIPS_Brochure.pdf
Feature:
"Policy per VLAN tag"
* Juniper Networks IDP 50/200/600/1100
=======================================
http://www.juniper.net/products/intrusion/dsheet/110037.pdf
Feature
"Enterprise Networking 802.1Q VLAN Support"
References:
[1]
http://mediaproducts.gartner.com/reprints/juniper/vol2/article2/article2.html
Regards,
--
Luis Lopez
InfoSec / IT-IS
Atos Origin
Albarracin 25 Madrid 28037
Spain
Phone: +34912148329
PCell: +34649836261
Fax: +34912148871
luis.lopez@atosorigin.com
http://www.atosorigin.com
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-----Original Message-----
From: listbounce@securityfocus.com [mailto:listbounce@securityfocus.com] On
Behalf Of Chris Brown
Sent: lunes, 12 de febrero de 2007 17:54
To: 'Gary Halleen'; 'Eric Hines'; 'Andrew Plato'
Cc: focus-ids@securityfocus.com
Subject: RE: IPS and Trunking
Also supported by McAfee IntruShield, you can also specify a separate policy
for each VLAN you see on the Trunk. This can be further broken down and a
policy can be defined for each individual host either inbound or outbound if
you so wish.
Regards
Chris
---Original Message-----
From: listbounce@securityfocus.com [mailto:listbounce@securityfocus.com] On
Behalf Of Gary Halleen
Sent: 09 February 2007 01:46
To: Eric Hines; Andrew Plato
Cc: trav_2@hotmail.com; focus-ids@securityfocus.com
Subject: Re: IPS and Trunking
I've seen several replies saying essentially the same thing: "This is a
feature of the switch - not the IDS."
However, this is only partially true.
It is certainly a function of the switch to be able to copy traffic to a
destination port using something like SPAN, VACL Capture, or other similar
features. Many switches support sending this captured traffic to an 802.1q or
ISL trunk port. All currently shipping Cisco switches, to the best of my
knowledge, support this.
Most IDS products should be able to at least analyze traffic that arrives via
trunk ports. All Cisco IDS/IPS products have supported this for as long as I
can remember. Additionally, Cisco IDS/IPS sensors are able to track the VLAN
traffic arrives on through the trunk port, rather than simply grouping the
traffic all together. The event action can be dependent on which VLAN the
malicious traffic was seen on. In the alert that is triggered, the VLAN from
the trunk port is displayed.
I don't know what vendors support this capability, but it is certainly
supported by Cisco sensors.
If we talk about IPS instead of IDS, the feature remains for us. You can plug
an interface on a Cisco IPS sensor into a trunk port, and the sensor can treat
each VLAN on the trunk separately.
Gary Halleen, CISSP, ISSAP
Cisco Systems, Inc.
On 2/8/07 3:00 PM, "Eric Hines" <eric.hines@appliedwatch.com> wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Trav_2:
You're talking about two separate things.
1) Cisco is a switch and you're talking about a mirror/span port.
Though, network taps > Span ports :)
2) Its not the IDS/IPS that is performing that capability, its the
switch. So its inaccurate to ask if the IDS/IPS vendors you mentioned
can do the same thing. A span port doesn't care whats hooked up to
it, whether its Snort or a sniffer.
Hope this helps.
Best Regards,
Eric Hines, GCIA, CISSP
CEO, President
Applied Watch Technologies, LLC
1095 Pingree Road
Suite 221
Crystal Lake, IL 60014
Toll Free: (877) 262-7593
Fax: (847) 854-5106
Cell: (847) 456-6785
Web: www.appliedwatch.com
Andrew Plato wrote:
If you create a mirror port and plug in any IPS/IDS, it will see the
traffic. TippingPoint, ISS, etc. All can do that.
Also, pretty much any decent managed switch can have mirror ports.
This is not unique to Cisco.
Keep in mind, you cannot do real-time IPS (intrusion prevention) in
any reliable manner this way. You have to be IN-LINE to do real-time
blocking and filtering. Passive monitoring off a mirror port only
allows you to send RSTs to stop stuff, and that is not a very
reliable way to block bad stuff.
___________________________________
Andrew Plato, CISSP, CISM
President/Principal Consultant
Anitian Enterprise Security
-----Original Message-----
From: listbounce@securityfocus.com
[mailto:listbounce@securityfocus.com]
On Behalf Of trav_2@hotmail.com
Sent: Monday, February 05, 2007 10:44 AM
To: focus-ids@securityfocus.com
Subject: IPS and Trunking
Cisco has a great feature where I can configure all traffic on a
switch to go to a trunk port, plug in the IPS/IDS to the trunk port
and see all traffic. Can other vendors, such as Sourcefire,
TippingPoint, ISS do this?
Thanks,
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