Re: [Xen-users] routed network (not only one vif needed?)

["Sueveges Gyoergy" <georg@xxxxxxxxxxxx>]

Hi

 Thnx for the answer.

So do you think I need bridged network?
I have the dom0 (having public IP, and being also part of the private  
network) and ths DOMU-s as the subnetwork (192.168.0.x).
I don't understand what will be happened with the network interfaces at  
briding:
 - There will be an xen-br0 interface created with my  DOMU's IP address
 - When starting my DOM1 a mew VIF interface on DOM0 will be created, but  
there will be no interface created on DOM1.
What I would except: having one virtual interface on dom0, that all the  
domU could see as gateway. On  DOMu there should be an eth0 everywehere  
where I would set the appropriate IP adresses, gateways.. So with that I'd  
have a virtual router on DOM0. Maybe is this concept worng?
How schould I live with the interfaces created by xen bridge scripts in  
this case?
Thnx
 George





On Tue, 25 Oct 2005 21:00:56 +0200, Dirk H. Schulz  
<dirk.schulz@xxxxxxxxxxxxx> wrote:
> Hi Georg,
>
> georg@xxxxxxxxxxxx schrieb:
>
> > Hi!
> >
> > Now I tried to set up xen for routed network. I didn't understand why so
> > much vifs will be create, as much as domains I have.
> > My routed network consists of the domain0 (with public IP), and  
> > domainU-s as the subnetwork (192.168.0.x)
> > So I modified the vif-route script in order to have only one vif for all
> > domainsU-s (with ip 192.168.0.254).  But in this case only the domainU
> > works, for that I created the vif. So I need more VIF in order to have
> > networking also in all my DomainU-s? all of these Vifs should have the
> > same IP address.
> Why should that make sense? I do not see what you are after with this.
>
> Routed networking implies that every domU is a subnet of its own, so it  
> has to have an address space (not only a single address) of its own.  
> Dom0 has to have a routing table that connects the dom0 NIC with the the  
> virtual subnets that the domUs are.
> > (My subdomains are in one private network (192.168.0.1))
> Why don't you use bridging, then?
>
> Dirk
>
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