Snort mailing list archives
Re: Problem with the '-i' option
From: Alex Tatistcheff <alex.tatistcheff () gmail com>
Date: Wed, 4 Nov 2009 08:57:22 -0700
To check and see if it's a problem with your bridge setup try using tcpdump and see if you get the same results, i.e. tcpdump -i br1 -vXs0 Alex Tatistcheff alext () pobox com -- When a convicted terrorist was sentenced to face Jack Bauer, he appealed to have the sentence reduced to death. On Mon, Nov 2, 2009 at 2:17 AM, Eric S <ericseligman () hotmail com> wrote:
Hello everyone, I am having a bit of a problem getting Snort to run on different interfaces on Linux. I have a bridge setup (br0) that is bridged with eth1 (my primary physical interface connected to the network). I also have another bridge (br1) that connects a number of other virtual interfaces (mostly for VM's), such as vif1, vif2, etc. My issue is when I issue a command such as: snort -i br1 -dev All I see is traffic from br0. This occurs with every other interface on my system. No errors are generated, however when snort is initialized (no matter the interface specified, even if its jiberish) I see this information: --== Initializing Snort ==-- Initializing Output Plugins! *** *** interface device lookup found: br0 *** Initializing Network Interface br0 Decoding Ethernet on interface br0 So it seems to me that snort is ignoring my '-i' switch, and just using the first active interface, which would be br0. It would appear that there may be an issue with the interface detection script, in that it is only see "br0" as active. However, this certainly seems like a bug because A.) Network traffic flows as excepted from each of the interfaces, and B.) tcpdump -i works perfectly on all the interfaces. So the question is, does anyone have an idea as to what is going wrong, or what I can do to remidy this issue? I've searched for hours on this issue and havent found much, so any help would be appreciated. Thanks, Eric ------------------------------ New Windows 7: Find the right PC for you. Learn more.<http://www.microsoft.com/windows/pc-scout/default.aspx?CBID=wl&ocid=PID24727::T:WLMTAGL:ON:WL:en-US:WWL_WIN_pcscout:112009> ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users<https://lists.sourceforge.net/lists/listinfo/snort-users%0ASnort-users>list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
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Current thread:
- Problem with the '-i' option Eric S (Nov 02)
- Re: Problem with the '-i' option Alex Tatistcheff (Nov 04)