How to create control traffic network

[Dean Kamali <de...@gmail.com>]

Hello everyone

is it possible to create another network for management purposes?

Similar to the control network we see attached to virtual router, a network
with only an IP and subnet mask, with no default gateway.

This is what I have done so far, trying to achieve that.

1. created a network offering and created a guest network
2. create new instance and attach it to 2 networks (management, and
production network).

When I start the instance, vm will only show 1 NIC with IP address, and it
is usually from the default network in CS.

So even tho I selected 2 networks, it only took an IP from the default
network.

Not sure how to go around this issue, is there is a special way of creating
a network that doesn't require default gateway to be specified?

Thanks

Re: How to create control traffic network

[Geoff Higginbottom <ge...@shapeblue.com>]

Dean,

If you spun up a VM on two networks and it only got 1 IP assigned its probably down to your guest OS not auto configuring the 2nd network.  As a test try and manually create the ifcfg-eth1 file for the 2nd network.

As regards to creating a management network, and using a shared network, do you intend adding this to every VM, as doing so will effectively interconnect all of them and bypass the concept of isolated networks, and their security.

Regards

Geoff Higginbottom
CTO / Cloud Architect


D: +44 20 3603 0542<tel:+442036030542> | S: +44 20 3603 0540<tel:+442036030540> | M: +447968161581<tel:+447968161581>

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ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS



On 31 Aug 2013, at 23:15, "Kirk Kosinski" <ki...@gmail.com>> wrote:

Hi, do you need VMs on this network to get an IP via DHCP?  If you don't
need DHCP you can create a network offering for shared networks without
DHCP (and other services you don't need on this network) and create a
shared network with this offering.  You'll probably still need to
specify a default gateway for the network, but without DHCP it won't be
assigned to VMs.

Best regards,
Kirk

On 08/28/2013 10:10 PM, Dean Kamali wrote:
Hello everyone

is it possible to create another network for management purposes?

Similar to the control network we see attached to virtual router, a network
with only an IP and subnet mask, with no default gateway.

This is what I have done so far, trying to achieve that.

1. created a network offering and created a guest network
2. create new instance and attach it to 2 networks (management, and
production network).

When I start the instance, vm will only show 1 NIC with IP address, and it
is usually from the default network in CS.

So even tho I selected 2 networks, it only took an IP from the default
network.

Not sure how to go around this issue, is there is a special way of creating
a network that doesn't require default gateway to be specified?

Thanks

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Re: How to create control traffic network

[Kirk Kosinski <ki...@gmail.com>]

Hi, do you need VMs on this network to get an IP via DHCP?  If you don't
need DHCP you can create a network offering for shared networks without
DHCP (and other services you don't need on this network) and create a
shared network with this offering.  You'll probably still need to
specify a default gateway for the network, but without DHCP it won't be
assigned to VMs.

Best regards,
Kirk

On 08/28/2013 10:10 PM, Dean Kamali wrote:
> Hello everyone
> 
> is it possible to create another network for management purposes?
> 
> Similar to the control network we see attached to virtual router, a network
> with only an IP and subnet mask, with no default gateway.
> 
> This is what I have done so far, trying to achieve that.
> 
> 1. created a network offering and created a guest network
> 2. create new instance and attach it to 2 networks (management, and
> production network).
> 
> When I start the instance, vm will only show 1 NIC with IP address, and it
> is usually from the default network in CS.
> 
> So even tho I selected 2 networks, it only took an IP from the default
> network.
> 
> Not sure how to go around this issue, is there is a special way of creating
> a network that doesn't require default gateway to be specified?
> 
> Thanks
>