You need to create a bridge on the physical host. For example:

# cat /etc/sysconfig/network-scripts/ifcfg-br0

TYPE=Bridge

NAME=br0

DEVICE=br0

IPADDR=<public ip>

PREFIX=23

GATEWAY=<gateway>

DNS1=10.254.254.251

DNS2=8.8.8.8

While the actual physical interface looks something like this:

# cat /etc/sysconfig/network-scripts/ifcfg-eth0

# Generated by dracut initrd

NAME=eth0

ONBOOT=yes

NETBOOT=yes

IPV6INIT=yes

BOOTPROTO=none

TYPE=Ethernet

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

BRIDGE=br0

Then under the devices section in your VM config you might have something like this:

</interface>

Does this get you going in the right direction? Now you should be able to bind the IPs directly within each VM as you desire.

On Tue, Dec 7, 2021 at 6:50 PM Lists <lists@benjamindsmith.com> wrote:

I have a physical host with a single physical network adapter. I want to host
several VMs on host. (guest1 - guest4) The guest systems are accessible via
192.168.122.* as is the default with qemu/virsh.

There are 4 IP addresses being routed to the primary interface on host. I can
set up an alias for the NIC and "see" these ip addresses.

I understand that it's possible to allow the 4 VM guest systems to each have a
"direct" fixed IP address and access the addresses \via the host network
adapter, while the host retains its fixed IP.

I've been googling like crazy and there is a lot of stale and conflicting
information.

Has anybody here done this successfully?

Host and all guests are running Alma 8.

Thanks.

Ben S_______________________________________________
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