RE: Multiple Subnets in sr net

["Murray, Todd" <Todd.Murray () adidasus com>]

3.4 My network spans multiple subnets. How do I define HOME_NET?

Snort 1.7 supports IP lists. You can assign a number of addresses to a
single
variable. For example:

    var HOME_NET [10.1.1.0/24,192.168.1.0/24]

Note: Not all preprocessors support IP lists at this time. Unless otherwise
stated, assume that any preprocessor using an IP list variable will use the
first value as the HOME_NET. The portscan preprocessor is an example. To
catch
all detectable portscans, pass 0.0.0.0/0 in as the first parameter.

    preprocessor portscan: 0.0.0.0/0 5 3 portscan.log

Use the portscan-ignorehosts preprocessor to fine tune and ignore traffic
from
noisy, trusted machines.


Read section 3.4 of the FAQ.

http://www.snort.org/docs/FAQ.txt

-----Original Message-----
From: snort-users-admin () lists sourceforge net
[mailto:snort-users-admin () lists sourceforge net] On Behalf Of Devanathan,
Balaji (Corporate, consultant)
Sent: Friday, June 25, 2004 1:16 PM
To: Snort-Users (E-mail)
Subject: [Snort-users] Multiple Subnets in sr net

Hi,

  Can multiple ip subnets be given in the src net option in snort. I have
snort monitoring the whole 10.0.0.0/8 network and i want snort alerts from
10.1.1.0/24 and 10.2..1.0/24 .

Cheers
Devanathan.B


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