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L2 broadcast in GRE tunneled setup

asked 2015-07-11 03:18:30 -0500

busyboy gravatar image

In normal openstack setup, where VM's are configured to use GRE tunnels, is it possible to send the L2 broadcast to an L2 Device.

My scenario is something like this. I want to setup 5 VMs and then intercept traffic on L2 using a hardware device that only listens to Layer2 packets, no ip setup is possible. I have followed a usual setup guide which only configures the Neutron network using GRE tunnels. I have no idea if is possible to share L2 domain with an external device.

Any help.

Regards,

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answered 2015-07-11 04:47:52 -0500

busyboy gravatar image

Oh great, Thanks for your help.

I'm looking for a sample network creation procedure on VLAN. I'm not a network pro , so it might be more than ANYTHING for me. Thanks

Regards, Nasir

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answered 2015-07-11 03:51:43 -0500

SamYaple gravatar image

You can, but what you are asking is much easier done with VLAN networks (or Flat I suppose). Otherwise you will have to on your L2 hardware device add connections to the GRE tunnels. In the end I don't believe you can achieve what you want reliably with GRE. Stick to VLAN.

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Asked: 2015-07-11 03:18:30 -0500

Seen: 55 times

Last updated: Jul 11 '15