Snort mailing list archives

RE: Stealth interface not seeing any IP traffic


From: "Ron Jenkins" <rjenkins () dibr net>
Date: Sat, 22 Jan 2005 20:43:23 -0600

If that is a Linksys Everywhere Hub, it is not really a hub.  You will
have to find an old hub.

Thanks...

-----Original Message-----
From: snort-users-admin () lists sourceforge net
[mailto:snort-users-admin () lists sourceforge net] On Behalf Of David G.
Humes
Sent: Saturday, January 22, 2005 8:02 PM
To: snort-users
Subject: [Snort-users] Stealth interface not seeing any IP traffic

I just setup a system for running snort at home and I'm having a problem
with the monitoring interface not seeing any IP traffic.  If I do a
tcpdump on the monitoring interface all I see is the usual boatload of
arp requests and an occasional igmp message.  It's a Redhat 9 system
with libpcap-0.8.3.  The monitoring interface is plugged into a port on
a hub that sits between my cable modem my router/switch.  FWIW the hub
is a Linksys NH1005-WM.  Here's the configuration of eth1.

eth1      Link encap:Ethernet  HWaddr 00:01:02:C9:D6:53
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:44499 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:2673544 (2.5 Mb)  TX bytes:120 (120.0 b)
          Interrupt:10 Base address:0x1480

Here's my /etc/sysconfig/network-scripts/ifcfg-eth1 file.

TYPE=Ethernet
DEVICE=eth1
BOOTPROTO=static
ONBOOT=yes
IPADDR=0.0.0.0

 
I've also tried setting eth1 noarp and promisc, but that does not make
any difference.  And I tried giving the interface an address and that
didn't help either.  I know the interface works, as I have used it as
the management interface to the sensor.  

Any thoughts?



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