Soner,
If you are in bridge mode, sniffing on one of the interface should be enough
as any of the interface should see all the traffics. So that doesn't matter.
And it is fine that bridge has no IP and snort will still work.
We need to know more about your setup, it's a bit unclear, I'm wondering why
you should configure IP for the network interfaces.
On 4/9/07, Soner Tari <list@kulustur.org> wrote:
Hi,
I need to run snort on multiple interfaces. Currently, I'm running
multiple snort instances to achieve this, but this stretches the shared
memory.
I've read FAQ 3.6, where it reads I should use a bridge interface on
*BSD systems. I've tried that advice by creating bridge0, adding
physical interfaces to it, upping it (per the brconfig(8) examples), and
finally starting snort with "-i bridge0" argument. Snort starts (though,
complaining that bridge0 is not assigned any IPs), but I cannot see any
alerts.
Otherwise, I use nmap to trigger alerts, and I can generate alerts very
easily by providing snort with, say, "-i vr0".
In order to clarify what I did, I need to assign IPs to all of the
physical interfaces, thus I cannot follow the examples in brconfig(8)
verbatim.
Do I need to do anything else, or am I missing something? How do I
achieve "any" interface on OpenBSD?
I would appreciate any help,
Thanks,
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