On Fri, 2009-11-27 at 14:02 +1300, Steven Ellis wrote: > Running Centos 5.4 with KVM on a Dell R610 server and I'd like to > control which of the four ethernet interfaces are used for specific > tasks > > My ideal configuration would be > > eth0 - Host traffic only, no virtual guests. Used for guest mirroring > and management. > eth1 - NAT guest traffic only, no address for local machine and in > some environments in the same zone as eth0 > eth2/3 - Allocated to two different bridge devices which might be in > separate network zones. > > The configuration of eth2/3 is fairly simple, my issue is restricting > any NAT traffic to a specific ethernet devices, and ideally one with > no local IP. > > Any ideas? > > Steve > So if I have this right, at the basic level you wish to have: - One interface for Host machine - Multiple interfaces for guest traffic If your environment supports VLANs (802.1Q), might I suggest a trunk port on eth1 split up into different bridges to have the KVM guests go through to get on different VLANs/address spaces. This is what I currently do for Xen and it works great. What kind of network setup to you have?
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