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Re: TAP/SPAN...


What hypervisor are you using?


If you're using KVM, you could add a vlan VIF into the bridge in question and then dump that traffic somewhere via a replicated span on your switch.


-  Si


________________________________
From: David Merrill <david.merrill@xxxxxxxxxx>
Sent: Friday, September 28, 2018 1:47 PM
To: users@xxxxxxxxxxxxxxxxxxxxx
Subject: TAP/SPAN...

We’ve got a client who would like to ship a copy of all packets that pass through their virtual router to an appliance (that we’d place on their VLAN).

I’ve searched a bit (I’d hoped to see some mention of it in the users list) and haven’t found specific references to TAP/SPAN related to CloudStack, is there a convention for such things? I’m a (tiny) little out of my depth, is this the kind of thing that I might find (if it existed) here:


  *   http://docs.cloudstack.apache.org/en/4.11.1.0/adminguide/networking.html?highlight=network%20service%20providers

At the very least is something like this (a kind of roll-your-own SPAN) possible on the virtual router?


  *   https://networkhop.wordpress.com/2016/04/27/port-mirroring-with-iptables/

I wish this had come up at the collab  in Montreal (having JUST been there earlier this week), but so it goes.

Thanks for any consideration/feedback,
David

David Merrill
Senior Systems Engineer,
Managed and Private/Hybrid Cloud Services
OTELCO
92 Oak Street, Portland ME 04101
office 207.772.5678<callto:207.772.5678>
www.otelco.com<http://www.otelco.com>/business/managed-services

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