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Monitoring Multiple Subnets
From: Shaun Marlin <shaun.marlin () canalta com>
Date: Mon, 13 May 2013 15:03:56 +0000

I am building a SNORT box to monitor my network.  I have 2 ISP's.  Is it possible to have the 2 ISP's connect into an 
unmanaged switch, then have SNORT configured with an IP from each block that I have, and finally pass the traffic back 
onto the switch that goes into my network?

Sorry for the run on question there

Essentially I am looking for something like this


                [cid:image002.png@01CE4FB8.CC852E20]
                [cid:image006.png@01CE4FB8.CC852E20]
        [cid:image001.png@01CE4FB8.CC852E20]






[cid:image001.png@01CE4FB8.CC852E20]ISP 1
                                                                                                                        
                                               Router 1                                                                 
                                                                                                      Internal Network

[cid:image004.png@01CE4FB8.CC852E20]





                [cid:image004.png@01CE4FB8.CC852E20]


[cid:image011.png@01CE4FB8.CC852E20]ISP 2                                                                               
                                                              Router 2

[cid:image013.png@01CE4FB8.CC852E20]                                                                                    
        SNORT


                                Unmanaged Switch


SNORT would endup monitoring 3 different subnets.  For instance 1.1.1.0/27 2.2.2.0/27 and 3.3.3.0/29.

Does anyone see a reason why this would not work


Shaun Marlin
Network Administrator

[cid:canaltalogobc15d2]
Canalta Family of Companies


2109 - 545 Highway 10 East
Drumheller AB Canada T0J 0Y0
PHONE: (403) 820-3865
CELL:     (403) 334-1313


EMAIL:   shaun.marlin () canalta com
WEB:      www.canalta.com






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