[Snort-users] Var Home_Net and NIC talk prob

Willy, Andrew AWilly at ...13017...
Wed Aug 17 08:58:29 EDT 2005


You're working with software and documentation that assumes you're familiar
with basic networking.  I suggest beginning with general TCP/IP and Ethernet
before going onto to IDS. There are countless resources online.

Andrew





-----Original Message-----
From: Banshee [mailto:banshee6670 at ...1877...]
Sent: Wednesday, August 17, 2005 8:47 AM
To: snort-users at lists.sourceforge.net
Subject: [Snort-users] Var Home_Net and NIC talk prob


Hello all,

I am trying to install snort following a guide that is on
winsnort:(http://www.winsnort.com/modules.php?op=modload&name=Sections&file=
index&req=printpage&artid=5).

I have  installed apache,installed and configured php, tested apache and php
and installed winpcap and snort ok.Now I am stuck. 



I need enter my ip in var home_net but I dont know what to enter there as I
have dynamic ip.

Quote:

----
To monitor a single host, with an IP of 192.168.171.129
Change: var HOME_NET 192.168.171.129/32

Note: You could also use:
Change: var HOME_NET 192.168.171.129

To monitor a class C Network with an IP of 192.168.171.x, and a subnet of
255.255.255.x
Change: var HOME_NET 192.168.171.129/24

To monitor a class B network with an IP of 192.168.x.x, and a subnet of
255.255.x.x
Change: var HOME_NET 192.168.171.129/16

To monitor a class A Network with an IP of 192.x.x.x, and a subnet of
255.x.x.x
Change: var HOME_NET 192.168.171.129/8 

---------------end of quote-----------


What are those 32,24,16,8 at the end of the ips ? and what is a subnet. How
do I know which ones to add to my  dynamic ips ? I have no clue....



Quote:

-----------

Testing the Snort installation 

[clip]
At the command prompt '>' type: snort -W

[clip]
Connect the sensor to the network using the preferred Network Interface Card
(NIC) and make sure that the web can be browsed. 
-----------end of quote


How would I do that ? I dont even know what/where my NIC is.


Any help appreciated.

Luca S.
















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