On 01/15/2013 05:31 AM, James Condron wrote:
> Jay, Guys,
> 
> The Vlan Manager stuff looks spot on for my needs but I am a tad confused.
> 
> (Perhaps Folsom addresses these; I'm just on a deadline to get a PoC running 
> and I don't want to look like I've been wasting time building this).
> 
> Assuming I configure my vlan on my switch, set my switchport to trunk and use 
> vlanmanager do Scenarios 6 and 7 extend out to hosts *not* on OpenStack/ not 
> configured via OpenStack?
> 
> Would I be able to, say, connect from my PC vlan to one of the vlans 
> configured via OpenStack? Would this also allow me to configure bridges on 
> Open Stack to route via their own IPs and Vlans?

Not quite sure, actually. I'm certainly no networking guru, sorry :( I'd
imagine you *could* do this, but it would take manually modifying
iptables on the individual compute nodes -- which would mess with the
nova-network controller on the compute nodes IIUC...

-jay

> Thanks,
> 
> James
> 
> 
> On 14 Jan 2013, at 18:11, Jay Pipes <jaypi...@gmail.com> wrote:
> 
>> I'd recommend Folsom over Essex :) And I'd highly recommend these
>> articles from Mirantis which really step through the networking setup in
>> VLANManager. Read through them in the following order and I promise at
>> the end you will have a much better understanding of networking in Nova.
>>
>> http://www.mirantis.com/blog/openstack-networking-flatmanager-and-flatdhcpmanager/
>> http://www.mirantis.com/blog/openstack-networking-single-host-flatdhcpmanager/
>> http://www.mirantis.com/blog/openstack-networking-vlanmanager/
>> http://www.mirantis.com/blog/vlanmanager-network-flow-analysis/
>>
>> All the best,
>> -jay
>>
>> On 01/14/2013 11:52 AM, James Condron wrote:
>>> Hi all,
>>>
>>> I've recently started playing with (and working with) OpenStack with a
>>> view to migrate our production infrastructure from esx 4 to Essex.
>>>
>>> My issue, or at least utter idiocy, is in the network configuration.
>>> Basically I can't work out whether in the configuration of OpenStack I
>>> have done something daft, on the network something daft or I've not
>>> understood the technology properly.
>>>
>>> *NB: *I can get to the outside world form my VMs; I don't want to
>>> confuse things further.
>>>
>>> As attached is a diagram I knocked up to hopefully make this simpler,
>>> though I hope I can explain it simply with:
>>>
>>> *************
>>> *Given both public and private interfaces on my server being on the same
>>> network and infrastructure how would one go about accessing VMs via
>>> their internal IP and not have to worry about a VPN or Public IPs?*
>>> *************
>>>
>>> My corporate network  works on simple vlans; I have a vlan for my
>>> production boxen, one for development, one for PCs, telephony, etc. etc.
>>> These are pretty standard.
>>>
>>> The public, eth0 NIC on my compute node (Single node setup, nothing
>>> overly fancy; pretty vanilla) is on my production vlan and everything is
>>> accessible.
>>> the second nic, eth1, is supposedly on a vlan for this specific purpose.
>>>
>>> I am hoping to be able to access these internal IPs on their... Internal
>>> IPs (For want of a better phrase). Is this possible? I'm reasonably
>>> confident this isn't a routing issue as I can ping the eth1 IP from the
>>> switch:
>>>
>>> #ping 10.12.0.1
>>>
>>> Type escape sequence to abort.
>>> Sending 5, 100-byte ICMP Echos to 10.12.0.1, timeout is 2 seconds:
>>> !!!!!
>>> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms
>>>
>>> But none of the ones assigned to VMs:
>>>
>>> #ping 10.12.0.4
>>>
>>> Type escape sequence to abort.
>>> Sending 5, 100-byte ICMP Echos to 10.12.0.4, timeout is 2 seconds:
>>> .....
>>> Success rate is 0 percent (0/5)
>>>
>>> Or.... for those looking at the attached diagram: vlan101 is great and
>>> works fine; what do I need to do (If at all possible) to get vlan102
>>> listening?
>>>
>>>
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>>
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