Mirror interface traffic

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Leonidas Kallipolitis

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Feb 7, 2020, 8:56:58 AM2/7/20
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Hi,

Is there a way that we could mirror all network traffic to the interface of one specific (physical) node? E.g. to make it act as network monitoring machine.

Thanks,
Leo

Brecht Vermeulen

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Feb 7, 2020, 8:59:47 AM2/7/20
to Leonidas Kallipolitis, fed4fire-experimenters
Hi Leonidas,

which testbed are you using ?
And you mean mirror traffic of all nodes in a experiment to one specific interface ? (as you would use a hub ?)

I think it will be difficult/not possible, but if you have a more specific question, maybe there is a workaround.

thanks,
Brecht

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Leonidas Kallipolitis

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Feb 7, 2020, 9:04:55 AM2/7/20
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Hi Brecht,

It's Virtual Wall 2 I am using and yes it would mean that traffic between all nodes of the experiment is mirrored to the interface of one specific node.
I would then have a netflow collector there and analyse network traffic

On Friday, February 7, 2020 at 3:59:47 PM UTC+2, Brecht Vermeulen wrote:
Hi Leonidas,

which testbed are you using ?
And you mean mirror traffic of all nodes in a experiment to one specific interface ? (as you would use a hub ?)

I think it will be difficult/not possible, but if you have a more specific question, maybe there is a workaround.

thanks,
Brecht

On Fri, Feb 7, 2020 at 2:57 PM Leonidas Kallipolitis <lkalli...@gmail.com> wrote:
Hi,

Is there a way that we could mirror all network traffic to the interface of one specific (physical) node? E.g. to make it act as network monitoring machine.

Thanks,
Leo

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Brecht Vermeulen

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Feb 7, 2020, 9:21:15 AM2/7/20
to Leonidas Kallipolitis, fed4fire-experimenters
Hi Leonidas,

I think you will need to do this through software (if your netflow collector cannot be operated in a distributed way).

best regards,
Brecht

On Fri, Feb 7, 2020 at 3:05 PM Leonidas Kallipolitis <lkalli...@gmail.com> wrote:
Hi Brecht,

It's Virtual Wall 2 I am using and yes it would mean that traffic between all nodes of the experiment is mirrored to the interface of one specific node.
I would then have a netflow collector there and analyse network traffic

On Friday, February 7, 2020 at 3:59:47 PM UTC+2, Brecht Vermeulen wrote:

Leonidas Kallipolitis

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Feb 7, 2020, 9:50:07 AM2/7/20
to fed4fire-experimenters
Ok, your example made me think the other way around, I just installed a probe to every node that sends traffic to my central collector.
So eventually it was easier than thought.

Thanks!

On Friday, February 7, 2020 at 4:21:15 PM UTC+2, Brecht Vermeulen wrote:
Hi Leonidas,

I think you will need to do this through software (if your netflow collector cannot be operated in a distributed way).

best regards,
Brecht

On Fri, Feb 7, 2020 at 3:05 PM Leonidas Kallipolitis <lkalli...@gmail.com> wrote:
Hi Brecht,

It's Virtual Wall 2 I am using and yes it would mean that traffic between all nodes of the experiment is mirrored to the interface of one specific node.
I would then have a netflow collector there and analyse network traffic

On Friday, February 7, 2020 at 3:59:47 PM UTC+2, Brecht Vermeulen wrote:
Hi Leonidas,

which testbed are you using ?
And you mean mirror traffic of all nodes in a experiment to one specific interface ? (as you would use a hub ?)

I think it will be difficult/not possible, but if you have a more specific question, maybe there is a workaround.

thanks,
Brecht

On Fri, Feb 7, 2020 at 2:57 PM Leonidas Kallipolitis <lkalli...@gmail.com> wrote:
Hi,

Is there a way that we could mirror all network traffic to the interface of one specific (physical) node? E.g. to make it act as network monitoring machine.

Thanks,
Leo

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