[libvirt-users] vms doesn't coomunicate via network

daggs
2018-12-15T14:54:22Z

Greetings,

I have two vms, one is a router and the other one is a client, for some reason,
the client vm is unable get ip via dhcp from the router vm.
here are outputs:
vm1.xml:
    <interface type='bridge'>
      <mac address='52:54:00:54:78:be'/>

      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x01'
slot='0x00' function='0x0'/>
    </interface>

router.xml:
    <interface type='bridge'>
      <mac address='52:54:00:f9:bd:fb'/>

      <target dev='vnet1'/>
      <model type='virtio'/>
      <alias name='net1'/>
      <address type='pci' domain='0x0000' bus='0x0a'
slot='0x00' function='0x0'/>
    </interface>

ifconfig:
$ busybox ifconfig -a
dummy0    Link encap:Ethernet  HWaddr CE:2E:DD:15:8A:0C
          BROADCAST NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:21428 errors:0 dropped:0 overruns:0 frame:0
          TX packets:21428 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1039176 (1014.8 KiB)  TX bytes:1039176 (1014.8 KiB)

virbr0    Link encap:Ethernet  HWaddr 52:54:00:7E:27:AF
          inet6 addr: fe80::5054:ff:fe7e:27af/64 Scope:Link
          inet6 addr: fdab:9802:eb52:0:5054:ff:fe7e:27af/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:530861 errors:0 dropped:0 overruns:0 frame:0
          TX packets:85 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:591914339 (564.4 MiB)  TX bytes:4042 (3.9 KiB)

virbr0-dummy Link encap:Ethernet  HWaddr 52:54:00:7E:27:AF
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:141357 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:32288355 (30.7 MiB)

vnet0     Link encap:Ethernet  HWaddr FE:54:00:8B:66:C1
          inet addr:10.0.0.3  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fdab:9802:eb52:0:fc54:ff:fe8b:66c1/64 Scope:Global
          inet6 addr: fe80::fc54:ff:fe8b:66c1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:261801 errors:0 dropped:0 overruns:0 frame:0
          TX packets:438289 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:42370344 (40.4 MiB)  TX bytes:895415306 (853.9 MiB)

vnet1     Link encap:Ethernet  HWaddr FE:54:00:F9:BD:FB
          inet6 addr: fe80::fc54:ff:fef9:bdfb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:531064 errors:0 dropped:0 overruns:0 frame:0
          TX packets:262 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:599366518 (571.5 MiB)  TX bytes:27088 (26.4 KiB)

/etc/network/interface:
$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#allow-hotplug enx503eaa4f9dcd
#iface enx503eaa4f9dcd inet dhcp
#allow-hotplug enp0s31f6
#iface enp0s31f6 inet dhcp

allow-hotplug vnet0
iface vnet0 inet dhcp

auto virbr0-dummy
iface virbr0-dummy inet manual
    pre-up /sbin/ip link add virbr0-dummy type dummy
    up /sbin/ip link set virbr0-dummy address 52:54:00:7e:27:af

auto virbr0
iface virbr0 inet manual
   hwaddress ether 19:7c:3b:92:ec:ee
   bridge_ports virbr0-dummy

any ideas what cen be the issue?

Thanks,

Dagg.