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From Ian Young <iyo...@ratespecial.com>
Subject Re: dual NIC VLAN configuration
Date Fri, 25 Jul 2014 18:18:16 GMT
So if management/storage traffic is on cloudbr0 and guest VMs are on
cloudbr1, would these be the correct settings in agent.properties?

guest.network.device=cloudbr1
private.network.device=cloudbr1
public.network.device=cloudbr1


On Fri, Jul 25, 2014 at 10:11 AM, Ian Young <iyoung@ratespecial.com> wrote:

> Thank you, Geoff.  That was precisely the answer I was looking for.  I
> knew I was doing something wrong.  I didn't realize the second adapter
> could be used without an IP address explicitly assigned to it.  Yes, this
> is a basic zone (just an internal project so we don't need any public IP
> addresses).  I was planning to set up an NFS server on the
> 192.168.101.0/24 network so this is exactly what I was trying to
> accomplish.  Thanks.
>
>
> On Fri, Jul 25, 2014 at 1:34 AM, Geoff Higginbottom <
> geoff.higginbottom@shapeblue.com> wrote:
>
>> Ian,
>>
>> It looks like you are trying to setup a basic zone and have a Management
>> Server on IP 192.168.101.3 and a Host on IP 192.168.101.4.
>>
>> The second interface on the host does not need any IP configuration on
>> the Host as it will not be used by the Host so remove the 192.168.102.4
>> mapping..  This interface will be used by the Guest VMs running on the Host
>> who will have their own IP schema.
>>
>> Your Guest IP range will be in the 192.168.102.0/24 CIDR with a gateway
>> of 192.168.102.1
>>
>> The Management Serve will talk to the Host via the 1st Interface, and
>> Guest VMs will use the 2nd.
>>
>> You have not mentioned storage, but assuming you are using NFS for
>> Primary and Secondary, put the NFS Server on the 192.168.101.0/24
>> network, and then all storage traffic will also go over the 1st interface.
>>
>> Regards
>>
>> Geoff Higginbottom
>>
>> D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581
>>
>> geoff.higginbottom@shapeblue.com
>>
>> -----Original Message-----
>> From: Daan Hoogland [mailto:daan.hoogland@gmail.com]
>> Sent: 25 July 2014 08:47
>> To: users@cloudstack.apache.org
>> Subject: Re: dual NIC VLAN configuration
>>
>> Ian, I would imagine that guest traffic can't go out to the net this way.
>> Maybe you should swap them. This is only guessing however. What are you
>> seeing?
>>
>> On Fri, Jul 25, 2014 at 2:00 AM, Ian Young <iyoung@ratespecial.com>
>> wrote:
>> > Here's the less verbose version:  My hypervisor has two NICs and I've
>> > set up a label on each.  Traffic to and from cloudbr0 works perfectly.
>> > Traffic going into cloudbr1 goes out cloudbr0 because that interface
>> > has a default gateway.  Will this pose a problem when I try to set up
>> > separate management and guest networks in CloudStack?
>> >
>> >
>> > On Thu, Jul 24, 2014 at 10:56 AM, Ian Young <iyoung@ratespecial.com>
>> wrote:
>> >
>> >> I am trying to set up a server with two NICs as a hypervisor.  I
>> >> would like to use the two interfaces to separate management and guest
>> >> traffic, as recommended by the CloudStack installation guide.  This
>> >> server is connected to a managed switch, which is connected to a
>> >> hardware firewall, both of which are set up with tagged VLANs.  Some
>> >> of the ports on the switch are designated as VLAN 6 and some are VLAN
>> >> 7.  I've confirmed the VLANs are set up correctly by configuring eth0
>> >> and eth1 (one at a time) with the appropriate IP address, netmask, and
>> gateway.
>> >>
>> >> However, the difficulty arises when I try to configure both
>> >> interfaces simultaneously.  The return traffic tends to go out
>> >> whichever interface is associated with the default gateway, a typical
>> >> issue when using multiple network interfaces.  I've followed numerous
>> >> guides, which all basically say the same thing:  Don't set a default
>> >> gateway; use iproute2 to control the flow of traffic with route-eth0,
>> >> rule-eth0, and rt_tables.  I've tried setting this up numerous times
>> >> to no avail, probably because the guides I'm reading don't involve
>> >> VLANs.  Add to that the the cloudbr0 and cloudbr1 bridges that
>> >> CloudStack requires and now I'm really confused as to how to set up
>> >> the network.  I can't be the first person to have set up CloudStack
>> >> this way; it sounds pretty common.  Can someone explain to me the
>> correct way to configure these interfaces?
>> >>
>> >> Here is my network information:
>> >>
>> >> VLAN 6 (management)
>> >> 192.168.101.0/24
>> >> gateway: 192.168.101.1
>> >>
>> >> VLAN 7 (guest)
>> >> 192.168.102.0/24
>> >> gateway: 192.168.102.1
>> >>
>> >> current hypervisor settings:
>> >> eth0: 192.168.101.4
>> >> eth1: 192.168.102.4
>> >>
>> >> current management server settings (this is a separate machine):
>> >> p4p1: 192.168.101.3
>> >>
>>
>>
>>
>> --
>> Daan
>> Find out more about ShapeBlue and our range of CloudStack related services
>>
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>>
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>
>

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