Re: [Openstack] question on the GRE Communication

Thanks Logan On Thu, Mar 14, 2013 at 7:16 PM, Logan McNaughton lo...@bacoosta.comwrote: I'm not sure about verifying the GRE tunnels, so I can't be much help there. As far as understanding how the tunneling happens, GRE is an open protocol, not specific to OpenStack, or any vendor, and

Re: [Openstack] question on the GRE Communication

Thanks Robert. On Thu, Mar 14, 2013 at 7:25 PM, Robert van Leeuwen robert.vanleeu...@spilgames.com wrote: Thanks for the reply. I have one more question. How we will check whether the tunneling is established or not? tcpdump can show you the GRE traffic: tcpdump -i ethX proto gre

Re: [Openstack] question on the GRE Communication

Hi Logan, Thanks for the reply. I have one more question. How we will check whether the tunneling is established or not? I have gone through lot of documents of gre setup and all are says that the ovs-vsctl show command will show the tunnel info. Also is there a doc to understand how the magic

Re: [Openstack] question on the GRE Communication

I'm not sure about verifying the GRE tunnels, so I can't be much help there. As far as understanding how the tunneling happens, GRE is an open protocol, not specific to OpenStack, or any vendor, and googling GRE should give you plenty of information about it. On Mar 14, 2013 5:21 AM, Aru s

Re: [Openstack] question on the GRE Communication

Thanks for the reply. I have one more question. How we will check whether the tunneling is established or not? tcpdump can show you the GRE traffic: tcpdump -i ethX proto gre Cheers, Robert ___ Mailing list: https://launchpad.net/~openstack Post to

Re: [Openstack] question on the GRE Communication

That's the best way I found to see if GRE is up, just watching for two way proto gre traffic. Here's how you can match the IP addresses *inside* the GRE packet, which you probably will want. Note that 0x0a050505 is hexadecimal for my desired IP address of 10.5.5.5: root@os-network:~# tcpdump -i

[Openstack] question on the GRE Communication

Hi, I am trying to configuring openstack with one controller and one network and two compute nodes. I am not able to understand how the communication of the VM's happens which are for the same tenant with same ip range but on the different compute hosts. Please help me to understand how GRE

Re: [Openstack] question on the GRE Communication

For Quantum GRE tunneling, the network node and compute nodes need a NIC on your data network. You assign each of those NIC's an IP (for instance, 192.168.1.1-3). Then (assuming you are using openvswitch with GRE tunneling) you set up your quantum configs. Look at the Quantum administration guide