[Snort-users] Basics of setting up an inline snort installation

Dave Kelly bigdavekelly at ...14012...
Thu Feb 9 12:29:36 EST 2012

Thanks, that might make a bit more sense!  So the two interfaces that
are bridging don't need IP addresses?  I haven't seen a guide to
setting this up anywhere, do you know of one?


On Thu, Feb 9, 2012 at 4:21 PM, Heine Lysemose <lysemose at ...11827...> wrote:
> Hi,
> To setup Snort as inline you need 3 network interface and pass your traffic
> through a bridge between 2 of the interfaces and a 3. for administration.
> You can start Snort with -Q to enable inline.
> /Lysemose
> On Feb 9, 2012 4:23 PM, "Dave Kelly" <bigdavekelly at ...14012...> wrote:
>> Hello,
>> I'm going to try setting up a new inline configuration, I've only
>> tried passive before but would like Snort to be able to drop packets
>> it says are bad.  I'm trying to work out the IP addressing for it. At
>> the moment, I have all my machines in with a router at
>> and a mirrored port on the switch sending all traffic to
>> snort.
>> It's pretty similar to the Ubuntu getting started guide in the docs
>> ("Snort on Ubuntu 10.04 LTS").
>> I think that to move snort to inline I'm going to need to give it a
>> proper IP address and have the traffic pass through it but I can't
>> quite work out how to do that without reconfiguring all the hosts to
>> have new gateway addresses etc.  Any hints to get me going would be
>> much appreciated.
>> Dave.
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