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From Geoff Higginbottom <>
Subject RE: Trouble with adding network services
Date Mon, 28 Apr 2014 09:35:57 GMT

What you want to achieve is very possible, it's just the terms used can be a little confusing.

I believe you want to create a new network which will assign 'public' IPs directly to Guest
VMs.  In CloudStack, the 'Public' network is only used by System VMs and Virtual Routers so
you have to create a new Guest Network which used a new Public IP Address Range and allow
Guest VMs to use it via a Shared Network.

What you need to do is create a new 'shared' network, which will in fact be a 'guest' network,
but the Virtual Router will only provide DHCP, DNS, and UserData services, and will not act
as an actual Router.  Routing will be provided by a physical Router/L3 Switch.

1.  Allocate a new IP range and VLAN ID on your network infrastructure which will pass Internet
Live 'public' IPs down to the HyperVisors is a similar way the CloudStack Public Traffic is
2.  Identify which CloudStack Physical Network this VLAN is mapped to, this will be needed
in step 5
3.  When creating the new Network, set the scope to either 'All' (every user in the Zone)
or a speciic Account or Domain (I'm guessing you want to use the All option)
4.  Ensure you have chosen the Network Offering of 'Offering for Shared Networks'
5.  Ensure you chose the 'Physical Network' which your new IP range is mapped to
6.  Enter the VLAN ID used in step 1
7.  Enter the appropriate IP information in the Network Offering, note the IPv4 Gateway will
be the IP of the Physical Router/L3 Switch which is terminating the new Public IP Range


Geoff Higginbottom

D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581

-----Original Message-----
From: Matthew Midgett []
Sent: 27 April 2014 21:04
Subject: Trouble with adding network services

OK, I admit that I am lost and do not know what the procedure is to creating a network service.

I would like to have a public address assigned to my VM's using CS4.3 and xenserver. I don't
need a guest network on this first /28

Can someone tell me the required steps? I've tried and had no luck.
Maybe I'm making this too hard and it should be easy.

I click on Network > Add Guest network

I understand all the options there but the main problem is that on physical interfaces is
only lists one of my guest nic's and not my public one. What do need to setup so I can select
the public nic and then continue with the rest of the fields as needed.

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