Hello-
Assuming I have the host /etc/network/interfaces in Debian Bullseye as
follows:
-----------------------------------------------------
auto enpXYs0
iface eth0 inet static
address mn.opq.rst.xy # Main IP
netmask 255.255.255.255
pointopoint (Gateway IP)
gateway (Gateway IP)
auto virbr0
iface virbr0 inet static
address mn.opq.rst.xy #Main IP
netmask 255.255.255.255
bridge_ports none
bridge_stp off
bridge_fd 0
pre-up brctl addbr virbr0
# Additional IP for VM below: only mn.opq octets match main IP
up ip route add mn.opq.uw.z/32 dev virbr0
down ip route del mn.opq.uw.z/32 dev virbr0
----------------------------------------------------
Using the above configuration, ip addr
shows the main host IP address as 'peer' with its gateway IP.
Please, see:
<
https://docs.hetzner.com/robot/dedicated-server/network/net-config-debian-ubuntu/#routed-brouter
>
What kind of /etc/libvirt/qemu/network/mytestnetwork.xml file should I
create for a virtual machine installation connected via libvirtd? Please
note that nftables are in use and possibly I should edit its
configuration file to add the IP mn.opq.uw.z of the virtual machine and
thus enable the VM to utilize the main host IP as a gateway.
Currently I have
mytestnetwork.xml which contains:
<network>
<name>mytestnetwork</name>
<uuid>char-string</uuid>
<forward mode='bridge'/>
<bridge name='virbr0'/>
</network>
The VirtManager GUI advances the installation of the Debian OS in the VM
but even if I have provided the main host IP as its gateway IP it cannot
fetch the debian packages from its repository, i.e., there is no
connection to the outside world.
Any insight is appreciated.
--
Best Professional Regards.
--
Jose R R
http://metztli.it
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