Re: Security Onion and a new VLan?

[Joel Esler <jesler () sourcefire com>]

I don't mind Security Onion related conversations on the Snort lists Doug.  Especially when they are about Snort ;)

J

On May 30, 2012, at 2:20 PM, Doug Burks wrote:

> Hi Corbin,
>
> It sounds like you're getting packets into eth1, but there are no
> processes running on that interface to sniff the traffic.  When you
> ran Setup, did you specify that both eth0 and eth1 should be used for
> monitoring?
>
> Since this question is specific to Security Onion, we should probably
> continue this discussion on the Security Onion mailing list:
> http://groups.google.com/group/security-onion
>
> Thanks,
> Doug
>
> On Wed, May 30, 2012 at 1:08 PM, Corbin Fletcher <corbin () freeway com> wrote:
> > Hello Snort Community,
> >
> > We are attempting to monitor a larger part of our total network traffic
> > on Vlan 66.113.xx.xx we are running Security Onion (SO) in a production
> > environment, using Proxmox for VM and utilizing  Squil, and Snorby for
> > analysis. We have added the Vlan bridge in Proxmox and 66.113.xx.xx has
> > been added to our $HOME_NET.
> >
> > SO has an IP address of 10.10.xx.xxx on eth0 (which is not ideal) and
> > the data collected from this Vlan is accurately reflected in Squil and
> > Snorby. We see events from eth0 in Squil and Snorby, but nothing for
> > eth1. And all data collected on eth0 is from the 10.10.xx.xxx Vlan
> > exclusivity.
> >
> > When I run snort -i eth1 our sensor captures data from the 66.113.xx.xx
> > Vlan, which is correct.
> >
> > Do I need to add a static IP address e.g., 66.113.xx.xx to eth1 to fix
> > this issue?
> >
> > Is there some work I need to do in the config file?
> >
> > Our sensor is not monitoring Vlan 66.113.xx.xx.
> >
> > When I start Squil, I check the box eth0 and eth1, which are the network
> > I want to monitor. No data from eth1 is showing in Snorby and Squil.
> >
> > Ifconfig eth1& eth0
> >
> > eth1   Link encap:Ethernet  HWaddr 96:23:88:bd:5a:6c
> >           inet6 addr: fe80::9423:88ff:febd:5a6c/64 Scope:Link
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:4395272 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:1000
> >           RX bytes:351806305 (351.8 MB)  TX bytes:2826 (2.8 KB)
> >           Interrupt:11 Base address:0x6000
> >
> > eth0   Link encap:Ethernet  HWaddr 0a:60:90:b1:79:2f
> >           inet addr:10.10.xx.xx  Bcast:10.10.xx.xxx  Mask:255.255.255.0
> >           inet6 addr: fe80::860:90ff:feb1:792f/64 Scope:Link
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:5565523 errors:0 dropped:52 overruns:0 frame:0
> >           TX packets:161922 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:0 txqueuelen:1000
> >           RX bytes:881258190 (881.2 MB)  TX bytes:48699421 (48.6 MB)
> >           Interrupt:10 Base address:0xc000
> >
> > Thanks in advance. Any guidance is much appreciated.
> >
> >
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>
>
> -- 
> Doug Burks | http://securityonion.blogspot.com
> Don't miss SANS SEC503 Intrusion Detection In-Depth in
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>
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Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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