Re: [Ntop] Ntop and ERSPAN

[Simone Mainardi]

Hi,

Is the ERSPAN traffic detunneled? Do you get flows in the web interface? Please 
also send the ntopng logs and make sure folders permissions are read+write for 
the user who is running ntopng.


Simone

> On 4 Mar 2018, at 23:25, Rokkhan  wrote:
> 
> Hi,
> 
> I have updated to latest version but now I am unable to dump any packet. It 
> does not even generate the pcap folder on interface folder.
> 
> Greetings.
> 
> 2018-03-02 21:30 GMT+01:00 Simone Mainardi  >:
> Just wait until tomorrow (new builds are being generated) ad update ntopng to 
> the latest 3.3 version.
> 
> Simone
> 
> 
>> On 2 Mar 2018, at 21:29, Rokkhan > > wrote:
>> 
>> Sorry, I am quite newbie at this? what do i have to do? update? overwrite a 
>> file?
>> Greetings!
>> 
>> 2018-03-02 21:21 GMT+01:00 Simone Mainardi > >:
>> Thanks for providing the pcap. We have added GRE ERSPAN detunneling in 
>> https://github.com/ntop/ntopng/commit/9d82df748f27da6bc7c51e7e726600b09670c518
>>  
>> 
>> 
>> Please check it out and report. Thanks,
>> 
>> Simone
>> 
>>> On 1 Mar 2018, at 22:09, Rokkhan >> > wrote:
>>> 
>>> I have upgraded to v.3.3.180301 and I still see GRE traffic.
>>> 
>>> Greetings.
>>> 
>>> 2018-03-01 21:36 GMT+01:00 Rokkhan >> >:
>>> Hi,
>>> 
>>> I am using v.3.3.180125 version. I send you attached an small pcap.
>>> 
>>> 
>>> 
>>> 
>>> Greetings
>>> 
>>> 2018-03-01 20:54 GMT+01:00 Simone Mainardi >> >:
>>> As you can see from 
>>> https://github.com/ntop/ntopng/blob/dev/src/NetworkInterface.cpp#L1521 
>>>  
>>> ntopng decapsulates GRE traffic. Are you using the latest version? Can you 
>>> enclose a pcap file so we can try and reproduce?
>>> 
>>> 
 On 1 Mar 2018, at 20:40, Rokkhan >>> > wrote:
 
 Hi,
 I am using ntopng and it shows traffic flows as gre, instead of the real 
 traffic.
 Do i have to enable any option?
 Greetings
 
 
 El 1 mar. 2018 20:35, "Simone Mainardi" >>> > escribió:
 ntopng decapsulates GRE tunnels by default. nprobe needs the following 
 option to account for decapsulated traffic:
 
 [--tunnel|-5]   | Compute flows on tunnelled traffic 
 rather than
 | on the external envelope
 
 
 Simone
 
 > On 28 Feb 2018, at 18:28, Rokkhan >>> > > wrote:
 >
 > Hi,
 >
 > I am sending traffic to one of the ntop interfaces with ERSPAN but 
 > traffic info shows application as "GRE".
 >
 > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and 
 > show the real application?
 >
 > Saludos.
 > ___
 > Ntop mailing list
 > Ntop@listgateway.unipi.it 
 > http://listgateway.unipi.it/mailman/listinfo/ntop 
 > 
 
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>>> 
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>>> 
>>> 
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>>> http://listgateway.unipi.it/mailman/listinfo/ntop 
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>> 
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>> http://listgateway.unipi.it/mailman/listinfo/ntop 
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>> 
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> 
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> 

Re: [Ntop] Ntop and ERSPAN

[Rokkhan]

Hi,

I have updated to latest version but now I am unable to dump any packet. It
does not even generate the pcap folder on interface folder.

Greetings.

2018-03-02 21:30 GMT+01:00 Simone Mainardi :

> Just wait until tomorrow (new builds are being generated) ad update ntopng
> to the latest 3.3 version.
>
> Simone
>
>
> On 2 Mar 2018, at 21:29, Rokkhan  wrote:
>
> Sorry, I am quite newbie at this? what do i have to do? update? overwrite
> a file?
> Greetings!
>
> 2018-03-02 21:21 GMT+01:00 Simone Mainardi :
>
>> Thanks for providing the pcap. We have added GRE ERSPAN detunneling in
>> https://github.com/ntop/ntopng/commit/9d82df748f27da6bc7c
>> 51e7e726600b09670c518
>>
>> Please check it out and report. Thanks,
>>
>> Simone
>>
>> On 1 Mar 2018, at 22:09, Rokkhan  wrote:
>>
>> I have upgraded to v.3.3.180301 and I still see GRE traffic.
>>
>> Greetings.
>>
>> 2018-03-01 21:36 GMT+01:00 Rokkhan :
>>
>>> Hi,
>>>
>>> I am using v.3.3.180125 version. I send you attached an small pcap.
>>>
>>>
>>> 
>>>
>>> Greetings
>>>
>>> 2018-03-01 20:54 GMT+01:00 Simone Mainardi :
>>>
 As you can see from https://github.com/ntop/n
 topng/blob/dev/src/NetworkInterface.cpp#L1521 ntopng decapsulates GRE
 traffic. Are you using the latest version? Can you enclose a pcap file so
 we can try and reproduce?


 On 1 Mar 2018, at 20:40, Rokkhan  wrote:

 Hi,
 I am using ntopng and it shows traffic flows as gre, instead of the
 real traffic.
 Do i have to enable any option?
 Greetings


 El 1 mar. 2018 20:35, "Simone Mainardi"  escribió:

> ntopng decapsulates GRE tunnels by default. nprobe needs the following
> option to account for decapsulated traffic:
>
> [--tunnel|-5]   | Compute flows on tunnelled
> traffic rather than
> | on the external envelope
>
>
> Simone
>
> > On 28 Feb 2018, at 18:28, Rokkhan  wrote:
> >
> > Hi,
> >
> > I am sending traffic to one of the ntop interfaces with ERSPAN but
> traffic info shows application as "GRE".
> >
> > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and
> show the real application?
> >
> > Saludos.
> > ___
> > Ntop mailing list
> > Ntop@listgateway.unipi.it
> > http://listgateway.unipi.it/mailman/listinfo/ntop
>
> ___
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>>>
>>>
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>>
>>
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>
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>
>
>
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Re: [Ntop] Ntop and ERSPAN

[Simone Mainardi]

Just wait until tomorrow (new builds are being generated) ad update ntopng to 
the latest 3.3 version.

Simone

> On 2 Mar 2018, at 21:29, Rokkhan  wrote:
> 
> Sorry, I am quite newbie at this? what do i have to do? update? overwrite a 
> file?
> Greetings!
> 
> 2018-03-02 21:21 GMT+01:00 Simone Mainardi  >:
> Thanks for providing the pcap. We have added GRE ERSPAN detunneling in 
> https://github.com/ntop/ntopng/commit/9d82df748f27da6bc7c51e7e726600b09670c518
>  
> 
> 
> Please check it out and report. Thanks,
> 
> Simone
> 
>> On 1 Mar 2018, at 22:09, Rokkhan > > wrote:
>> 
>> I have upgraded to v.3.3.180301 and I still see GRE traffic.
>> 
>> Greetings.
>> 
>> 2018-03-01 21:36 GMT+01:00 Rokkhan > >:
>> Hi,
>> 
>> I am using v.3.3.180125 version. I send you attached an small pcap.
>> 
>> 
>> 
>> 
>> Greetings
>> 
>> 2018-03-01 20:54 GMT+01:00 Simone Mainardi > >:
>> As you can see from 
>> https://github.com/ntop/ntopng/blob/dev/src/NetworkInterface.cpp#L1521 
>>  
>> ntopng decapsulates GRE traffic. Are you using the latest version? Can you 
>> enclose a pcap file so we can try and reproduce?
>> 
>> 
>>> On 1 Mar 2018, at 20:40, Rokkhan >> > wrote:
>>> 
>>> Hi,
>>> I am using ntopng and it shows traffic flows as gre, instead of the real 
>>> traffic.
>>> Do i have to enable any option?
>>> Greetings
>>> 
>>> 
>>> El 1 mar. 2018 20:35, "Simone Mainardi" >> > escribió:
>>> ntopng decapsulates GRE tunnels by default. nprobe needs the following 
>>> option to account for decapsulated traffic:
>>> 
>>> [--tunnel|-5]   | Compute flows on tunnelled traffic 
>>> rather than
>>> | on the external envelope
>>> 
>>> 
>>> Simone
>>> 
>>> > On 28 Feb 2018, at 18:28, Rokkhan >> > > wrote:
>>> >
>>> > Hi,
>>> >
>>> > I am sending traffic to one of the ntop interfaces with ERSPAN but 
>>> > traffic info shows application as "GRE".
>>> >
>>> > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and show 
>>> > the real application?
>>> >
>>> > Saludos.
>>> > ___
>>> > Ntop mailing list
>>> > Ntop@listgateway.unipi.it 
>>> > http://listgateway.unipi.it/mailman/listinfo/ntop 
>>> > 
>>> 
>>> ___
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>>> Ntop@listgateway.unipi.it 
>>> http://listgateway.unipi.it/mailman/listinfo/ntop 
>>> ___
>>> Ntop mailing list
>>> Ntop@listgateway.unipi.it 
>>> http://listgateway.unipi.it/mailman/listinfo/ntop 
>>> 
>> 
>> ___
>> Ntop mailing list
>> Ntop@listgateway.unipi.it 
>> http://listgateway.unipi.it/mailman/listinfo/ntop 
>> 
>> 
>> 
>> ___
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>> Ntop@listgateway.unipi.it 
>> http://listgateway.unipi.it/mailman/listinfo/ntop 
>> 
> 
> ___
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> http://listgateway.unipi.it/mailman/listinfo/ntop 
> 
> 
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Re: [Ntop] Ntop and ERSPAN

[Rokkhan]

Sorry, I am quite newbie at this? what do i have to do? update? overwrite a
file?
Greetings!

2018-03-02 21:21 GMT+01:00 Simone Mainardi :

> Thanks for providing the pcap. We have added GRE ERSPAN detunneling in
> https://github.com/ntop/ntopng/commit/9d82df748f27da6bc7c51e7e726600
> b09670c518
>
> Please check it out and report. Thanks,
>
> Simone
>
> On 1 Mar 2018, at 22:09, Rokkhan  wrote:
>
> I have upgraded to v.3.3.180301 and I still see GRE traffic.
>
> Greetings.
>
> 2018-03-01 21:36 GMT+01:00 Rokkhan :
>
>> Hi,
>>
>> I am using v.3.3.180125 version. I send you attached an small pcap.
>>
>>
>> 
>>
>> Greetings
>>
>> 2018-03-01 20:54 GMT+01:00 Simone Mainardi :
>>
>>> As you can see from https://github.com/ntop/n
>>> topng/blob/dev/src/NetworkInterface.cpp#L1521 ntopng decapsulates GRE
>>> traffic. Are you using the latest version? Can you enclose a pcap file so
>>> we can try and reproduce?
>>>
>>>
>>> On 1 Mar 2018, at 20:40, Rokkhan  wrote:
>>>
>>> Hi,
>>> I am using ntopng and it shows traffic flows as gre, instead of the real
>>> traffic.
>>> Do i have to enable any option?
>>> Greetings
>>>
>>>
>>> El 1 mar. 2018 20:35, "Simone Mainardi"  escribió:
>>>
 ntopng decapsulates GRE tunnels by default. nprobe needs the following
 option to account for decapsulated traffic:

 [--tunnel|-5]   | Compute flows on tunnelled
 traffic rather than
 | on the external envelope


 Simone

 > On 28 Feb 2018, at 18:28, Rokkhan  wrote:
 >
 > Hi,
 >
 > I am sending traffic to one of the ntop interfaces with ERSPAN but
 traffic info shows application as "GRE".
 >
 > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and
 show the real application?
 >
 > Saludos.
 > ___
 > Ntop mailing list
 > Ntop@listgateway.unipi.it
 > http://listgateway.unipi.it/mailman/listinfo/ntop

 ___
 Ntop mailing list
 Ntop@listgateway.unipi.it
 http://listgateway.unipi.it/mailman/listinfo/ntop
>>>
>>> ___
>>> Ntop mailing list
>>> Ntop@listgateway.unipi.it
>>> http://listgateway.unipi.it/mailman/listinfo/ntop
>>>
>>>
>>>
>>> ___
>>> Ntop mailing list
>>> Ntop@listgateway.unipi.it
>>> http://listgateway.unipi.it/mailman/listinfo/ntop
>>>
>>
>>
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>
>
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Re: [Ntop] Ntop and ERSPAN

[Simone Mainardi]

Thanks for providing the pcap. We have added GRE ERSPAN detunneling in 
https://github.com/ntop/ntopng/commit/9d82df748f27da6bc7c51e7e726600b09670c518 


Please check it out and report. Thanks,

Simone

> On 1 Mar 2018, at 22:09, Rokkhan  wrote:
> 
> I have upgraded to v.3.3.180301 and I still see GRE traffic.
> 
> Greetings.
> 
> 2018-03-01 21:36 GMT+01:00 Rokkhan  >:
> Hi,
> 
> I am using v.3.3.180125 version. I send you attached an small pcap.
> 
> 
> 
> 
> Greetings
> 
> 2018-03-01 20:54 GMT+01:00 Simone Mainardi  >:
> As you can see from 
> https://github.com/ntop/ntopng/blob/dev/src/NetworkInterface.cpp#L1521 
>  
> ntopng decapsulates GRE traffic. Are you using the latest version? Can you 
> enclose a pcap file so we can try and reproduce?
> 
> 
>> On 1 Mar 2018, at 20:40, Rokkhan > > wrote:
>> 
>> Hi,
>> I am using ntopng and it shows traffic flows as gre, instead of the real 
>> traffic.
>> Do i have to enable any option?
>> Greetings
>> 
>> 
>> El 1 mar. 2018 20:35, "Simone Mainardi" > > escribió:
>> ntopng decapsulates GRE tunnels by default. nprobe needs the following 
>> option to account for decapsulated traffic:
>> 
>> [--tunnel|-5]   | Compute flows on tunnelled traffic 
>> rather than
>> | on the external envelope
>> 
>> 
>> Simone
>> 
>> > On 28 Feb 2018, at 18:28, Rokkhan > > > wrote:
>> >
>> > Hi,
>> >
>> > I am sending traffic to one of the ntop interfaces with ERSPAN but traffic 
>> > info shows application as "GRE".
>> >
>> > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and show 
>> > the real application?
>> >
>> > Saludos.
>> > ___
>> > Ntop mailing list
>> > Ntop@listgateway.unipi.it 
>> > http://listgateway.unipi.it/mailman/listinfo/ntop 
>> > 
>> 
>> ___
>> Ntop mailing list
>> Ntop@listgateway.unipi.it 
>> http://listgateway.unipi.it/mailman/listinfo/ntop 
>> ___
>> Ntop mailing list
>> Ntop@listgateway.unipi.it 
>> http://listgateway.unipi.it/mailman/listinfo/ntop 
>> 
> 
> ___
> Ntop mailing list
> Ntop@listgateway.unipi.it 
> http://listgateway.unipi.it/mailman/listinfo/ntop 
> 
> 
> 
> ___
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Re: [Ntop] Ntop and ERSPAN

[Rokkhan]

I have upgraded to v.3.3.180301 and I still see GRE traffic.

Greetings.

2018-03-01 21:36 GMT+01:00 Rokkhan :

> Hi,
>
> I am using v.3.3.180125 version. I send you attached an small pcap.
>
>
>
>
> Greetings
>
> 2018-03-01 20:54 GMT+01:00 Simone Mainardi :
>
>> As you can see from https://github.com/ntop/n
>> topng/blob/dev/src/NetworkInterface.cpp#L1521 ntopng decapsulates GRE
>> traffic. Are you using the latest version? Can you enclose a pcap file so
>> we can try and reproduce?
>>
>>
>> On 1 Mar 2018, at 20:40, Rokkhan  wrote:
>>
>> Hi,
>> I am using ntopng and it shows traffic flows as gre, instead of the real
>> traffic.
>> Do i have to enable any option?
>> Greetings
>>
>>
>> El 1 mar. 2018 20:35, "Simone Mainardi"  escribió:
>>
>>> ntopng decapsulates GRE tunnels by default. nprobe needs the following
>>> option to account for decapsulated traffic:
>>>
>>> [--tunnel|-5]   | Compute flows on tunnelled traffic
>>> rather than
>>> | on the external envelope
>>>
>>>
>>> Simone
>>>
>>> > On 28 Feb 2018, at 18:28, Rokkhan  wrote:
>>> >
>>> > Hi,
>>> >
>>> > I am sending traffic to one of the ntop interfaces with ERSPAN but
>>> traffic info shows application as "GRE".
>>> >
>>> > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and
>>> show the real application?
>>> >
>>> > Saludos.
>>> > ___
>>> > Ntop mailing list
>>> > Ntop@listgateway.unipi.it
>>> > http://listgateway.unipi.it/mailman/listinfo/ntop
>>>
>>> ___
>>> Ntop mailing list
>>> Ntop@listgateway.unipi.it
>>> http://listgateway.unipi.it/mailman/listinfo/ntop
>>
>> ___
>> Ntop mailing list
>> Ntop@listgateway.unipi.it
>> http://listgateway.unipi.it/mailman/listinfo/ntop
>>
>>
>>
>> ___
>> Ntop mailing list
>> Ntop@listgateway.unipi.it
>> http://listgateway.unipi.it/mailman/listinfo/ntop
>>
>
>
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Re: [Ntop] Ntop and ERSPAN

[Simone Mainardi]

As you can see from 
https://github.com/ntop/ntopng/blob/dev/src/NetworkInterface.cpp#L1521 
 ntopng 
decapsulates GRE traffic. Are you using the latest version? Can you enclose a 
pcap file so we can try and reproduce?

> On 1 Mar 2018, at 20:40, Rokkhan  wrote:
> 
> Hi,
> I am using ntopng and it shows traffic flows as gre, instead of the real 
> traffic.
> Do i have to enable any option?
> Greetings
> 
> 
> El 1 mar. 2018 20:35, "Simone Mainardi"  > escribió:
> ntopng decapsulates GRE tunnels by default. nprobe needs the following option 
> to account for decapsulated traffic:
> 
> [--tunnel|-5]   | Compute flows on tunnelled traffic 
> rather than
> | on the external envelope
> 
> 
> Simone
> 
> > On 28 Feb 2018, at 18:28, Rokkhan  > > wrote:
> >
> > Hi,
> >
> > I am sending traffic to one of the ntop interfaces with ERSPAN but traffic 
> > info shows application as "GRE".
> >
> > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and show 
> > the real application?
> >
> > Saludos.
> > ___
> > Ntop mailing list
> > Ntop@listgateway.unipi.it 
> > http://listgateway.unipi.it/mailman/listinfo/ntop 
> > 
> 
> ___
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> Ntop@listgateway.unipi.it 
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Re: [Ntop] Ntop and ERSPAN

[Rokkhan]

Hi,
I am using ntopng and it shows traffic flows as gre, instead of the real
traffic.
Do i have to enable any option?
Greetings


El 1 mar. 2018 20:35, "Simone Mainardi"  escribió:

> ntopng decapsulates GRE tunnels by default. nprobe needs the following
> option to account for decapsulated traffic:
>
> [--tunnel|-5]   | Compute flows on tunnelled traffic
> rather than
> | on the external envelope
>
>
> Simone
>
> > On 28 Feb 2018, at 18:28, Rokkhan  wrote:
> >
> > Hi,
> >
> > I am sending traffic to one of the ntop interfaces with ERSPAN but
> traffic info shows application as "GRE".
> >
> > ¿Coudl it be configured to inspect the traffic inside the ERSPAN and
> show the real application?
> >
> > Saludos.
> > ___
> > Ntop mailing list
> > Ntop@listgateway.unipi.it
> > http://listgateway.unipi.it/mailman/listinfo/ntop
>
> ___
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> Ntop@listgateway.unipi.it
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Re: [Ntop] Ntop and ERSPAN

[Simone Mainardi]

ntopng decapsulates GRE tunnels by default. nprobe needs the following option 
to account for decapsulated traffic:

[--tunnel|-5]   | Compute flows on tunnelled traffic rather 
than
| on the external envelope


Simone

> On 28 Feb 2018, at 18:28, Rokkhan  wrote:
> 
> Hi,
> 
> I am sending traffic to one of the ntop interfaces with ERSPAN but traffic 
> info shows application as "GRE".
> 
> ¿Coudl it be configured to inspect the traffic inside the ERSPAN and show the 
> real application?
> 
> Saludos.
> ___
> Ntop mailing list
> Ntop@listgateway.unipi.it
> http://listgateway.unipi.it/mailman/listinfo/ntop

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