KVM something wrong with IP settings

gegentierversuche

2/20/24, 12:39 PM

On Ubuntu 20.04 I installed KVM and with bridge mode I created some Vm's without any problem. Server has got 2 Ethernets and first one using public IP.

host: enp41s0 public enp1s0: private

host netplan:

bridges:
    br0:
      interfaces: [enp1s0]
      addresses: [192.168.1.51/24]
      # gateway4 is deprecated, use routes instead
      routes:
      - to: default
        via: public IP 
        metric: 100
        on-link: true
      mtu: 1500
      nameservers:
        addresses: [8.8.8.8]

KVM routed xml file

<network connections='1'>
  <name>routed151</name>
  <uuid>xxxxx</uuid>
  <forward dev='br0' mode='route'>
    <interface dev='br0'/>
  </forward>
  <bridge name='virbr151' stp='on' delay='2'/>
  <mac address='52:54:00:8c:c7:01'/>
  <ip address='192.168.3.51' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.3.1' end='192.168.3.254'/>
      <host name='vm03' ip='192.168.3.3'/>
    </dhcp>
  </ip>
</network>

virt-install --network network=routed151

during installation Ubuntu cannot connect the packet installation source. When I check the machine I can ping other VM s and host but for example I cannot ping google.com (but I see the IP adress of google)

route -n

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.3.51    0.0.0.0         UG    0      0        0 enp1s0
192.168.3.0     0.0.0.0         255.255.255.0   U     0      0        0 enp1s0

any idea?

0 + 0

kvm-virtualization

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