using ether filter

Carter Bullard carter at qosient.com
Tue May 26 23:59:48 EDT 2009


Hey Rodney,
Hmmmmm, the arrows are not right in the "-M rmon" example, they should
all be "<->" not "->".  Other than that, everything is working as it  
is suppose to.
The concept of "coming into the firewall" is a L2 semantic.  The "-M  
rmon"
option allows you to generate L2 metrics from L3 oriented data.

Good to see the "ether src xx:xx:xx:xx:xx:xx" filter placed correctly.

Carter

On May 26, 2009, at 11:37 PM, Rodney McKee wrote:

> What I'm looking for is traffic volume coming into the firewall/ 
> network, without using rmon I'm not seeing the flows that are  
> initiated from outside the network.
> Am I looking at this the right way?
> eg.
>
> ra -nr fw1.23 -w - - tcp | ra -nr - -N 100 -s +sbytes +dbytes  -  
> ether src 0:14:5e:31:52:38
> ...
> 2009-05-23 00:00:01.985171  e         tcp       
> 61.88.237.140.1154      ->    202.177.201.180.13010        44        
> 7720   FIN         4018         3702
> 2009-05-23 00:00:02.003966  e         tcp       
> 61.88.237.140.42427     ->     59.151.158.113.80           40       
> 27179   FIN         1659        25520
> 2009-05-23 00:00:02.091373  e         tcp       
> 61.88.237.140.1156      ->    202.177.201.180.13010        44        
> 7720   FIN         4018         3702
> 2009-05-23 00:00:02.092617  e         tcp       
> 61.88.237.140.1158      ->     89.187.105.134.13030        43        
> 7835   FIN         4034         3801
> ...
>
> If I use rmon I'm seeing the connections initiated from outside
>
> ra -nr fw1.23 -w - -M rmon - tcp | ra -nr - -N 200 -s +sbytes  
> +dbytes  - ether src 0:14:5e:31:52:38
> ...
> 2009-05-23 00:00:01.985171  e         tcp       
> 61.88.237.140.1154      ->    202.177.201.180.13010        44        
> 7720   FIN         4018         3702
> 2009-05-23 00:00:02.003966  e         tcp       
> 61.88.237.140.42427     ->     59.151.158.113.80           40       
> 27179   FIN         1659        25520
> 2009-05-23 00:00:02.014800  e         tcp       
> 61.88.237.140.5667      ->     203.89.192.138.38824        11        
> 1606   FIN          482         1124
> 2009-05-23 00:00:02.043536  e         tcp       
> 61.88.237.140.5667      ->     203.89.202.184.36008        11        
> 1606   FIN          482         1124
> 2009-05-23 00:00:02.075834  e         tcp       
> 61.88.237.140.5667      ->    202.177.201.181.43746        11        
> 1606   FIN          482         1124
> 2009-05-23 00:00:02.091373  e         tcp       
> 61.88.237.140.1156      ->    202.177.201.180.13010        44        
> 7720   FIN         4018         3702
> 2009-05-23 00:00:02.092617  e         tcp       
> 61.88.237.140.1158      ->     89.187.105.134.13030        43        
> 7835   FIN         4034         3801
> ...
>
> ----- carter at qosient.com wrote:
> > Hey Rodney,
> > Your input filter is working, the "-M rmon" option is then acting  
> on the filtered input and correctly generating the output.
> >
> > I'm pretty sure you don't want the "-M rmon"
> >
> > Carter
> Sent from my Verizon Wireless BlackBerry
> From: Rodney McKee
> > Date: Tue, 26 May 2009 17:14:54 +1000 (EST)
> > To: argus-info<argus-info at lists.andrew.cmu.edu>
> > Subject: [ARGUS] using ether filter
> >
> > Am I doing something wrong?
> > Shouldn't  the following command only show me those flows with the  
> filtered mac address?
> >
> > $ ra -M rmon -nr fw1.23 -N 10 -s +sbytes +dbytes +smac +dmac  -  
> ether src 0:14:5e:31:52:38
> >                  StartTime    Flgs  Proto               Host   
> Sport   Dir            DstAddr  Dport  TotPkts   TotBytes State      
> OutBytes      InBytes                Mac             DstMac
> > 2009-05-23 00:00:01.041191  e        icmp       
> 61.88.237.140.8        <->    202.130.120.194.31491         2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:01.041191  e        icmp     
> 202.130.120.194.8        <->      61.88.237.140.31491          
> 2        196   ECO           98           98      0:0:c:7:ac:ef    
> 0:14:5e:31:52:38
> > 2009-05-23 00:00:01.316196  e        icmp       
> 61.88.237.140.8        <->         87.80.0.15.34819         2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:01.316196  e        icmp          
> 87.80.0.15.8        <->      61.88.237.140.34819         2         
> 196   ECO           98           98      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:02.180324  e         udp       
> 61.88.237.140.6208     <->      125.252.200.5.53            2         
> 180   CON           82           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:02.180324  e         udp       
> 125.252.200.5.53       <->      61.88.237.140.6208          2         
> 180   CON           98           82      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:02.317448  e        icmp       
> 61.88.237.140.8        <->         87.80.0.15.34819         2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:02.317448  e        icmp          
> 87.80.0.15.8        <->      61.88.237.140.34819         2         
> 196   ECO           98           98      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:03.318681  e        icmp       
> 61.88.237.140.8        <->         87.80.0.15.34819         2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:03.318681  e        icmp          
> 87.80.0.15.8        <->      61.88.237.140.34819         2         
> 196   ECO           98           98      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:04.242992  e         udp       
> 61.88.237.140.60659    <->       125.56.176.8.53            2         
> 180   CON           82           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:04.242992  e         udp        
> 125.56.176.8.53       <->      61.88.237.140.60659         2         
> 180   CON           98           82      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:04.320106  e        icmp       
> 61.88.237.140.8        <->         87.80.0.15.34819         2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:04.320106  e        icmp          
> 87.80.0.15.8        <->      61.88.237.140.34819         2         
> 196   ECO           98           98      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:05.321564  e        icmp       
> 61.88.237.140.8        <->         87.80.0.15.34819         2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:05.321564  e        icmp          
> 87.80.0.15.8        <->      61.88.237.140.34819         2         
> 196   ECO           98           98      0:0:c:7:ac:ef   0:14:5e: 
> 31:52:38
> > 2009-05-23 00:00:05.951303  e        icmp       
> 61.88.237.140.8        <->    213.123.201.106.6165          2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:05.951303  e        icmp     
> 213.123.201.106.8        <->      61.88.237.140.6165           
> 2        196   ECO           98           98      0:0:c:7:ac:ef    
> 0:14:5e:31:52:38
> > 2009-05-23 00:00:06.952426  e        icmp       
> 61.88.237.140.8        <->    213.123.201.106.6165          2         
> 196   ECO           98           98   0:14:5e:31:52:38      0:0:c: 
> 7:ac:ef
> > 2009-05-23 00:00:06.952426  e        icmp     
> 213.123.201.106.8        <->      61.88.237.140.6165           
> 2        196   ECO           98           98      0:0:c:7:ac:ef    
> 0:14:5e:31:52:38
> >
> >
> > Rgds
> > Rodney
> >
>
> >
>
> -- 
>
> Rodney McKee
> Linux systems administrator
> Aconex
> The easy way to save time and money on your project
>
> 696 Bourke Street, Melbourne
> Tel: +61 3 9240 0200               Fax: +61 3 9240 0299
> Email: rmckee at aconex.com      www.aconex.com
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