From netramet-owner  Fri Dec 10 23:28:25 1999
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From: "Gerald Richter" <[email protected]>
To: <[email protected]>
Subject: NeTraMet and capturing ppp interfaces on Linux
Date: Fri, 10 Dec 1999 11:22:53 +0100
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Hi,

I just worked a few days with NeTraMet and had the need to capture the ppp0
device on my Linux box. Since NeTraMe 4.3 doesn't support this link type, I
have added a few lines of code to meter_ux.c to support this. I append the
patch, maybe it helps somebody.

Gerald

-------------------------------------------------------------
Gerald Richter    ecos electronic communication services gmbh
Internetconnect * Webserver/-design/-datenbanken * Consulting

Post:       Tulpenstrasse 5         D-55276 Dienheim b. Mainz
E-Mail:     [email protected]         Voice:    +49 6133 925151
WWW:        http://www.ecos.de      Fax:      +49 6133 925152
-------------------------------------------------------------

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Content-Type: application/octet-stream;
       name="meter_ux.c.diff"
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--- meter_ux.c.org      Fri Dec 10 10:33:01 1999=0A=
+++ meter_ux.c  Fri Dec 10 11:16:09 1999=0A=
@@ -551,7 +551,8 @@=0A=
unsigned int line_nbr=3D0;=0A=
#endif=0A=
=0A=
-void ether_callback(struct interface_info *user, struct pcap_pkthdr *h, =
u_char *p)=0A=
+=0A=
+void ether_callback2(struct interface_info *user, struct pcap_pkthdr =
*h, u_char *p, int offset)=0A=
{=0A=
   struct ether_hdr *ethp;=0A=
   struct llc *llcp;=0A=
@@ -563,8 +564,8 @@=0A=
      user->sample_count =3D user->SampleRate;=0A=
=0A=
      ethp =3D (struct ether_hdr *)p;=0A=
-      ether_type =3D get_short(ethp->type);=0A=
-      p +=3D sizeof(struct ether_hdr);=0A=
+      ether_type =3D offset?get_short(ethp->type):0x800;=0A=
+      p +=3D offset ;=0A=
      if (ether_type <=3D 1500) {  /* 802.3 packet */=0A=
         llcp =3D (struct llc *)p;=0A=
         lsap =3D llcp->dsap << 8 | llcp->ssap;=0A=
@@ -609,6 +610,19 @@=0A=
      }=0A=
   }=0A=
=0A=
+=0A=
+void ether_callback(struct interface_info *user, struct pcap_pkthdr *h, =
u_char *p)=0A=
+{=0A=
+       ether_callback2(user, h, p, sizeof(struct ether_hdr)) ;=0A=
+    }=0A=
+=0A=
+void ppp_callback(struct interface_info *user, struct pcap_pkthdr *h, =
u_char *p)=0A=
+{=0A=
+       ether_callback2(user, h, p, 0) ;=0A=
+    }=0A=
+=0A=
+=0A=
+=0A=
void interface_read(struct interface_info *pi)=0A=
{=0A=
   pcap_read(pi->pd, -1, pi->callback, (u_char *)pi);=0A=
@@ -636,6 +650,8 @@=0A=
   type =3D pcap_datalink(pd);=0A=
   if (type =3D=3D DLT_EN10MB || type =3D=3D DLT_IEEE802)=0A=
      pi->callback =3D (pcap_handler)ether_callback;=0A=
+   else if (type =3D=3D DLT_RAW )=0A=
+      pi->callback =3D (pcap_handler)ppp_callback;=0A=
   else if (type =3D=3D DLT_FDDI )=0A=
      pi->callback =3D (pcap_handler)fddi_callback;=0A=
   else {   =0A=

------=_NextPart_000_001D_01BF4300.E6715030--


From netramet-owner  Sat Dec 18 00:08:56 1999
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From: "Alex E. Zelenin" <[email protected]>
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To: [email protected]
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Hi !

Beg your pardon for my English and for may be stupid question.
What is an exact syntax of -i command line option of NeTraMet ? I've
just installed NeTraMet v4.3 on FreeBSD 3.3 stable and I want to
monitor 4 interfaces - lnc1, lnc2, lnc3, ed1. When I write
#NeTraMet -i lnc1 lnc2
I got :
Running on ur01.tu-chel.ac.ru, interface lnc1
When I try
#NeTraMet -i lnc1,lnc2
I got
Running on ur01.tu-chel.ac.ru1107:54  pcap_open_live(lnc1,lnc2):
lnc1,lnc2: Device not configured

So, would you please answer - what exactly I have to write to meter
my 4 interfaces ?
BTW, examples of command line will be nice in user manual.



              Southern Ural State University
               Division of WAN Technologies
            Alexey E. Zelenin, Network Engineer
                  Phone:+7(3512)654992
            E-mail: [email protected]

From netramet-owner  Sat Dec 18 03:19:49 1999
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From: "Gerald Richter" <[email protected]>
To: "Alex E. Zelenin" <[email protected]>, <[email protected]>
Subject: RE: multiple interfaces
Date: Fri, 17 Dec 1999 15:14:26 +0100
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> monitor 4 interfaces - lnc1, lnc2, lnc3, ed1. When I write

try

#NeTraMet -i lnc1 -i lnc2 -i lnc3 -i lnc4



-------------------------------------------------------------
Gerald Richter    ecos electronic communication services gmbh
Internetconnect * Webserver/-design/-datenbanken * Consulting

Post:       Tulpenstrasse 5         D-55276 Dienheim b. Mainz
E-Mail:     [email protected]         Voice:    +49 6133 925151
WWW:        http://www.ecos.de      Fax:      +49 6133 925152
-------------------------------------------------------------

From netramet-owner  Tue Dec 21 00:34:51 1999
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From: "Alex E. Zelenin" <[email protected]>
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To: [email protected]
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> > monitor 4 interfaces - lnc1, lnc2, lnc3, ed1. When I write
>
> try
>
> #NeTraMet -i lnc1 -i lnc2 -i lnc3 -i lnc4
>

:(
#NeTraMet -i lnc1 -i lnc2
gives :
NeTraMet: Network Meter v4.3
Running on host.somewhere.net, interface lnc11136:33
pcap_open_live(lnc2): /dev/bpf1: No such file or directory

Any other ideas ?



              Southern Ural State University
               Division of WAN Technologies
            Alexey E. Zelenin, Network Engineer
                  Phone:+7(3512)654992
            E-mail: [email protected]

From netramet-owner  Tue Dec 21 02:40:16 1999
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From: "Gerald Richter" <[email protected]>
To: "Alex E. Zelenin" <[email protected]>, <[email protected]>
Subject: RE: multiple interfaces
Date: Mon, 20 Dec 1999 14:34:03 +0100
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> > > monitor 4 interfaces - lnc1, lnc2, lnc3, ed1. When I write
> >
> > try
> >
> > #NeTraMet -i lnc1 -i lnc2 -i lnc3 -i lnc4
> >
>
> :(
> #NeTraMet -i lnc1 -i lnc2
> gives :
> NeTraMet: Network Meter v4.3
> Running on host.somewhere.net, interface lnc11136:33
> pcap_open_live(lnc2): /dev/bpf1: No such file or directory
>

does

#NeTraMet -i lnc2

work?

Gerald

From netramet-owner  Tue Dec 21 10:53:28 1999
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From: "Kevin A. Noll" <[email protected]>
To: <[email protected]>
Subject: Ruleset woes...
Date: Mon, 20 Dec 1999 16:52:23 -0500
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I have been working to get NeTraMet running for about a month now. I have
everything working okay, and collecting flow data. However, the flow data
files that I get from NeMaC don't make a lot of sense.

On most flow records in NeMaC's output, either the InOctets/InPDUs counters
are zero or the OutOctets/OutPDUs counters are zero.

Sometimes there will be two records for the same address pair, one with
the InOctets/InPDUs and one with the OutOctets/OutPDUs.

Does anyone have any thought as to why this occurs?

I would like to simply get a flow record that lists the InOctets and
OutOctets for a flow between a given Source/Destination address pair
over the collection period. It seems that this should be very simple
to do, but I just cannot seem to make it happen.

Below is my SRL rulefile:

-----------------------------Start SRL ----------------------------------
define LocalNets =
  172.16.1/24,
  172.17.1/24;

define Internal_Net =
  10.0/8;


define All =
  LocalNets, Internal_Net ;


  if SourcePeerType == IP save;
  else ignore;

  if (SourcePeerAddress == (LocalNets) || DestPeerAddress == (LocalNets))
save;
   else {
           ignore;
#           store FlowKind := 'U';
#           save SourcePeerAddress /32;
#           save DestPeerAddress /32;
#           count;
        }

  if DestPeerAddress == (LocalNets) nomatch;
        # We want the Local IP's as source

  if SourcePeerAddress == (LocalNets)
     save, {save SourcePeerAddress /32;
            save SourceAdjacentAddress;
            save DestAdjacentAddress;
            store FlowKind := 'P';}
  else if SourcePeerAddress == (Internal_Net)
     save, {save SourcePeerAddress /32;
            save DestAdjacentAddress;
            save DestAdjacentAddress;
            store FlowKind := 'N';}
  else {
     save SourcePeerAddress /32;
     save DestAdjacentAddress;
     save DestAdjacentAddress;
     store FlowKind := '?';
     }

  save DestPeerAddress /32;
  count;


set 4;
format
  FlowKind "  "
  SourcePeerType SourcePeerAddress DestPeerAddress "  "
  ToPDUs ToOctets FromPDUs FromOctets;

-----------------------------End SRL ----------------------------------


Thanks.

--kan--
--
Kevin A. Noll, KD4WOZ                            [email protected]
Lead Systems Engineer                            717.249.8800
BFG Consulting, LLC


From netramet-owner  Tue Dec 21 11:14:25 1999
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From: Nevil Brownlee <[email protected]>
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To: "Alex E. Zelenin" <[email protected]>
cc: [email protected]
Subject: Re: multiple interfaces
In-Reply-To: "Alex E. Zelenin"'s ([email protected]) message
       dated Mon, 20 Dec 1999 16:24:33.  <[email protected]>
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Increase the number of BPF devices in your kernel, and DTRT to add more bpf
devices to /dev/ .

H
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From: Nevil Brownlee <[email protected]>
To: "Kevin A. Noll" <[email protected]>
Cc: [email protected]
Subject: Re: Ruleset woes...
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Hello Kevin:

> On most flow records in NeMaC's output, either the
> InOctets/InPDUs counters are zero or the OutOctets/OutPDUs counters are
> zero.
>
> Sometimes there will be two records for the same address pair, one with
> the InOctets/InPDUs and one with the OutOctets/OutPDUs.

I think (mind, I say I think) your problems come from trying to
handle the 'source vs destination' processing yourself in the SRL
program.  I've appended a test program below which just tests whether
one of the nets you're interested in is the Source, and leaves the meter
to sort things out from there.  Please try this and let me know how
you get on.

Cheers, Nevil

+---------------------------------------------------------------------+
| Nevil Brownlee                     Director, Technology Development |
| Phone: +64 9 373 7599 x8941        ITSS, The University of Auckland |
|   FAX: +64 9 373 7021      Private Bag 92019, Auckland, New Zealand |
+---------------------------------------------------------------------P

define LocalNets =
  172.16.1/24,
  172.17.1/24;

define Internal_Net =
  10.0/8;


define All =
  LocalNets, Internal_Net ;


  if SourcePeerType == IP save;
  else ignore;

  if SourcePeerAddress == (All) {

     if SourcePeerAddress == (LocalNets)
        store FlowKind := 'P';
     else if SourcePeerAddress == (Internal_Net)
        store FlowKind := 'N';
     else store FlowKind := '?';

     save SourcePeerAddress/32;
     save DestPeerAddress/32;
     count;
     }


set 4;
format
  FlowKind "  "
  SourcePeerType SourcePeerAddress DestPeerAddress "  "
  ToPDUs ToOctets FromPDUs FromOctets;



From netramet-owner  Wed Dec 22 23:13:59 1999
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From: "Alex E. Zelenin" <[email protected]>
Organization: ChGTU Computer Department
To: [email protected]
Date: Wed, 22 Dec 1999 15:06:36 +500
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Subject: Multiple interfaces - thanx a lot, problem solved. (empty)
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              Southern Ural State University
               Division of WAN Technologies
            Alexey E. Zelenin, Network Engineer
                  Phone:+7(3512)654992
            E-mail: [email protected]

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