[Snort-users] iptable support

Joshua Brindle jbrindle at ...3790...
Thu Oct 11 21:19:06 EDT 2001


nah, i've looked at hogwash, and i like the concept but i do not like the implementation. Hogwash does userspace copying from interface to interface and this is not what i want, i want something that fits in with netfilter so that it can take advantage of linux's other abilities (ie: bridging, routing, etc) particularly hogwash is meant as an inline stackless active NIDS, but i want something more like a switch (right now my setup as 3 nics, lan, dmz, internet) and hogwash can't do this or do any routing or anything, and why set up 2 or 3 machines to do what 1 can? I've taken a look at hogwash-iptables and i still don't really like the implementation, and hogwash seems to be bound to (as of right now anyway) snort 1.7.1 so it  can't take advantage of anything newly added, i want either a drop in pcap driver, or some way for snort to interact nativly with netfilter. Thanks though.


Joshua Brindle

>>> "Benjamin W. Ritcey" <ben at ...3792...> 10/11/01 22:59 PM >>>
You want Hogwash

http://hogwash.sourceforge.net/

-----Original Message-----
From: snort-users-admin at lists.sourceforge.net
[mailto:snort-users-admin at lists.sourceforge.net]On Behalf Of Joshua
Brindle
Sent: Thursday, October 11, 2001 11:39 PM
To: snort-users at lists.sourceforge.net
Subject: [Snort-users] iptable support


There was some talk in november of last year about a version of snort
written to use iptables but i can't find this anywhere, and the authors
email @secureworks.net seems not to work anymore. The responce said that
snort would likely at some time be more modular and able to support
alternate packet capturers, but it seems like snort is still very reliant on
pcap. The reason i'm wondering is because i want a sort of active IDS that
will simply drop packets that match a signature, instead of trying to reset
the connection. I wrote a pcap 'driver' that uses ipq but it seems that the
m->payload and bp are in different formats and i don't know how to convert
between them, the patch is at
http://web.snu.edu/~jbrindle/pcap-netfilter.diff if anyone wants to take a
look and see what they can do, or tell give me more info on snorts state as
non-pcap reliant. Thanks for any info or pointers. :)

Joshua Brindle
UNIX Administrator
Southern Nazarene University

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