Snort mailing list archives

Re: Snort and my VLANs


From: Ayodele Okeowo <aymacro () gmail com>
Date: Fri, 15 Feb 2013 11:14:49 -0500

Unfortunately, I responded to the last thread that showed up on my phone,
then I found out you solved the problem after I've hit sent. :)

Glad it's working for you Josh. Enjoy the rest of your day as well.

Ayo


On Fri, Feb 15, 2013 at 11:09 AM, Josh Bitto <jbitto () onlineschool ca> wrote:

I actually resolved this…but since its Friday and you might not enjoy the
rest of your life without knowing this. :P****

We are using proxmox virtual environment with a pfsense firewall…..so all
my interfaces are created through that……Turns out I did everything
correctly I was just being a noob on triggering events.****

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*From:* Ayodele Okeowo [mailto:aymacro () gmail com]
*Sent:* Friday, February 15, 2013 5:54 AMA
*To:* Josh Bitto
*Cc:* snort-users () lists sourceforge net
*Subject:* Re: [Snort-users] Snort and my VLANs****

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Josh,

YM is right, you will need a distributed IDS to do this, however, what you
can do is, place your Sensor in a specific VLAN, and then assign that VLAN
to the egress interface of your Core switch or edge router before traffic
cross over to the Internet. This way you would be able to sense and drop
any packets.

And if you want to capture/sniff packets per VLAN, create a port mirroring
on a VLAN, then assign that VLAN to the interface where your IDS is plugged
to. All traffic will be mirrored to this interface so you can monitor them
on your IDS.

Are your devices Ciscos or Juniper or mixed environment?

****

Ayo****

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On Thu, Feb 14, 2013 at 4:56 PM, Josh Bitto <jbitto () onlineschool ca>
wrote:****

I’m having issues where I am not able to determine if I can actually catch
bad traffic with snort.****

 ****

Right now I have snort in a test lab where I have interfaces WAN, LAN….and
then my VLANS. My firewall does all the routing and has the vlans setup. So
when I go to testmyids.com and trigger a rule I get the rule triggered on
my WAN interface but not any of my VLANs……****

 ****

Basically what I’m trying to initiate is if a user brings in a byod…I want
to be able to detect anything on that machine when it connects to my
internal vlan.****

 ****



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------------------------------------------------------------------------------
Free Next-Gen Firewall Hardware Offer
Buy your Sophos next-gen firewall before the end March 2013 
and get the hardware for free! Learn more.
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_______________________________________________
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