The gateway is a router managed by you, not by CloudStack. Think of each POD as a rack of servers for example. The IP addresses for the guest VMs will be derived from the POD’s IP range. To communicate between pods (and to the rest of the world), the guest traffic has to cross the pod subnet into another subnet. This is the gateway (the first-hop router for the pod)
From: Ana Paula de Sousa <apso0...@gmail.com<mailto:apso0...@gmail.com>> Reply-To: "users@cloudstack.apache.org<mailto:users@cloudstack.apache.org>" <users@cloudstack.apache.org<mailto:users@cloudstack.apache.org>> Date: Thursday, April 24, 2014 at 10:43 AM To: "users@cloudstack.apache.org<mailto:users@cloudstack.apache.org>" <users@cloudstack.apache.org<mailto:users@cloudstack.apache.org>> Subject: Re: Doubts about cloudstack Thanks a lot! What I meant by " Is it the host itself or another VM that will be created by cloudstack?" was: The gateway is a VM created by cloudstack using the IP I provided in the creation of the zone or is it the host (hypervisor) itself? Or none of these options? 2014-04-24 14:35 GMT-03:00 Rafael Weingartner <rafaelweingart...@gmail.com<mailto:rafaelweingart...@gmail.com>>: "Is it created on the basic zone?" Yeah, it is create on basic zone. And if I am not wrong, it is also created on advanced zone setup. " When? After the system VMs or before? " It is created right before a user VM starts, the system VMs can be deployed without a VR. " Is it the responsible to provide dhcp to VMs?" It provides DHCP to VMs, it is also responsible to the reset password feature. "Another question is: why do I put the gateway on pod and guest traffic? What is the role of the gateway?" It will be the gateway used to all the VMs to route their network traffic through. " Is it the host itself or another VM that will be created by cloudstack?" I did not get this one. ;) On Thu, Apr 24, 2014 at 2:25 PM, Ana Paula de Sousa <apso0...@gmail.com<mailto:apso0...@gmail.com> >wrote: > Hi, > I've read the documentation of cloudstack and don't got the role of virtual > router on cloudstack. Is it created on the basic zone? When? After the > system VMs or before? Is it the responsible to provide dhcp to VMs? > Another question is: why do I put the gateway on pod and guest traffic? > What is the role of the gateway? Is it the host itself or another VM that > will be created by cloudstack? > > Thanks. > -- Rafael Weingärtner
