Snort mailing list archives

Re: Snort analyzed 0 out of 0 packets, .


From: "Bill Pennington" <billp () boarder org>
Date: Thu, 15 Nov 2001 17:21:59 -0800

I never had the pleasure *ahem* of installing snort on a Win32 platform but
a couple of thoughts spring to mind:

(Sorry if you have already tried these)

1. You are on a switched network so snort does not see any traffic.

2. Your EXTERNAL_NET variable is set incorrectly. A lot of rules only alert
on stuff coming from external to internal and it sounds like maybe you have
stuff going internal to internal.

3. You might want to run snort -vd, this will just dump all the packets
snorts sees to the command prompt window. This can help you determine if you
can see any traffic at all. If you see traffic but it is not alerting I
would suspect something like #2 or another rule set issue.

Good Luck!

----- Original Message -----
From: "Michael Green" <michael.green () gbst com>
To: <snort-users () lists sourceforge net>
Sent: Thursday, November 15, 2001 1:23 PM
Subject: [Snort-users] Snort analyzed 0 out of 0 packets, .


Hi

I just finished Installing Snort Version 1.8-WIN32 (Build 86) on a Win2k
box. Installed with MySql & Acid.

Everything seemed fine when I installed it, the required databases were
created and the acid setup connected and I hit the "Create ACID AG"
button,
this was also successful.

I then ran Cerberus Internet Scanner against the network that the Snort
machaine was installed, and nothing! The ACID console "# of Sensors:" has
0.
This concerns me.

So I ran snort command line:

C:\Snort\Snort-1.8.2\snort.exe -c C:\Snort\Snort-1.8.2\snort.conf -l
C:\Snort\Snort-1.8.2 -A full -h 203.0.171.64/26 -i 1 -d
Log directory = C:\Snort\Snort-1.8.2

And it ran without errors, I then ran the scanner again, the broke out of
the snort session and the stats displayed showed "Snort analyzed 0 out of
0
packets, ."

Now I'm thinking Winpcap can't be installed properly so I opened Control
Panel, Administrative Tools, Computer Management, then chose System Tools,
System Information, Software Environment, Drivers. The NPF Kernel Driver
was
displayed as "Running OK".
Any ideas?
I'm including the output from the snort command line run here:
C:\Snort\Snort-1.8.2\snort.exe -c C:\Snort\Snort-1.8.2\snort.conf -l
C:\Snort\Snort-1.8.2 -A full -h 203.0.171.64/26 -i 1 -d
Log directory = C:\Snort\Snort-1.8.2

        --== Initializing Snort ==--

Initializing Network Interface \
Decoding Ethernet on interface \Device\Packet_NdisWanIp
Initializing Preprocessors!
Initializing Plug-ins!
Initializating Output Plugins!
Parsing Rules file C:\Snort\Snort-1.8.2\snort.conf

+++++++++++++++++++++++++++++++++++++++++++++++++++
Initializing rule chains...
No arguments to frag2 directive, setting defaults to:
    Fragment timeout: 60 seconds
    Fragment memory cap: 4194304 bytes
Stream4 config:
    Stateful inspection: ACTIVE
    Session statistics: INACTIVE
    Session timeout: 30 seconds
    Session memory cap: 8388608 bytes
    State alerts: INACTIVE
    Scan alerts: ACTIVE
    Log Flushed Streams: INACTIVE
No arguments to stream4_reassemble, setting defaults:
     Reassemble client: ACTIVE
     Reassemble server: INACTIVE
     Reassemble ports: 21 23 25 53 80 143 110 111 513
     Reassembly alerts: ACTIVE
Back Orifice detection brute force: DISABLED
Using LOCAL time
WARNING: command line overrides rules file alert plugin!
WARNING: command line overrides rules file alert plugin!
limit == 128
UnifiedLogFilename = snort.log
Opening C:\Snort\Snort-1.8.2/snort.log.1005854049
882 Snort rules read...
882 Option Chains linked into 101 Chain Headers
0 Dynamic rules
+++++++++++++++++++++++++++++++++++++++++++++++++++

Rule application order: ->activation->dynamic->alert->pass->log

        --== Initialization Complete ==--

-*> Snort! <*-
Version 1.8-WIN32 (Build 86)
By Martin Roesch (roesch () sourcefire com, www.snort.org)
1.7-WIN32 Port By Michael Davis (mike () datanerds net,
www.datanerds.net/~mike)
1.8-WIN32 Port By Chris Reid (chris.reid () codecraftconsultants com)
          (based on code from 1.7 port)



============================================================================
===
Snort analyzed 0 out of 0 packets, .
Breakdown by protocol:                Action Stats:
    TCP: 0          (0.000%)          ALERTS: 0
    UDP: 0          (0.000%)          LOGGED: 0
   ICMP: 0          (0.000%)          PASSED: 0
    ARP: 0          (0.000%)
   IPv6: 0          (0.000%)
    IPX: 0          (0.000%)
  OTHER: 0          (0.000%)
DISCARD: 0          (0.000%)

============================================================================
===
Fragmentation Stats:
Fragmented IP Packets: 0          (0.000%)
    Fragment Trackers: 0
   Rebuilt IP Packets: 0
   Frag elements used: 0
Discarded(incomplete): 0
   Discarded(timeout): 0
  Frag2 memory faults: 0

============================================================================
===
TCP Stream Reassembly Stats:
        TCP Packets Used: 0          (0.000%)
         Stream Trackers: 0
          Stream flushes: 0
           Segments used: 0
   Stream4 Memory Faults: 0

============================================================================
===
pcap_loop: read error: PacketReceivePacket failedpcap_stats:
PacketGetStats
error
Snort received signal 3, exiting


Michael Green
Senior Systems Engineer Communication Systems
Global Banking & Securities Transactions
Telephone + 61 7 3331 5555
Michael.Green () gbst com
www.gbst.com


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