Re: Snort and my VLANs

[Y M <snort () outlook com>]

In this case you would need to place sensors between vlans for vlan-to-vlan communication/detection since the traffic 
will not be reaching the edge WAN or router interface and Snort will not be seeing the traffic. However, if a BYOD is, 
for example, infected with a malware which may be attempting to communicate to an external IP, then it has to go 
through the edge router and hence get detected by Snort.

This is where a distributed sensors deployment architecture would come in handy. I would suggest starting with, if you 
have one, the servers vlan to monitor any suspicious activity going to your servers.

I hope my answer makes some sense.

YM
________________________________
From: Josh Bitto<mailto:jbitto () onlineschool ca>
Sent: ‎2/‎15/‎2013 12:57 AM
To: snort-users () lists sourceforge net<mailto:snort-users () lists sourceforge net>
Subject: [Snort-users] Snort and my VLANs

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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