Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Snort-Users
[Top] [All Lists]

[Snort-users] one way traffic?

Subject: [Snort-users] one way traffic?
Date: Fri, 8 Dec 2006 09:56:37 -0500
Hello All,

I've noticed something strange with snort (2.4.3) and the sguil
log_packets.sh script.  It seems like all of a sudden I'm seeing one-way
traffic.  The sensor is running on Fedora Core5 and I want to say that it
may be attributed to a yum update, but I can't be certain exactly when this
started happening.  

Essentially I'm running snort in packet logger mode on a trunk port coming
off an edge router with BPF filters watching a specific host:

snort -l /var/log/snort/sensor/dailylogs/2006-12-08 -b -i eth1 vlan and host
xxx.xxx.xxx.xxx

It seems that the traffic I capture is only destined to the host, not to and
from.  Is it possible something changed as far as the filters?  The traffic
is being captured off of a Gigabit SingleStream tap to a gigabit copper
interface in promisc mode.  I've also tried a SPAN port to the same
interface with the same results.

Thoughts?

Thanks.

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
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 list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users

<Prev in Thread] Current Thread [Next in Thread>