Hello everybody,
I'm currently trying to use some virtual machines that I run with the command
.
For this purpose, I have created a bridge br0 with NetworkManager. Here are the active connections of nmcli :
and
Also, Iptables is empty and the configuration of netplan on the virtual machine is :
In fact, on this virtual machine I can access Internet and I can open a SSH connection to the host machine but the opposite is impossible (No route to host) and I can't open a connection between two virtual machines. Do you have any idea why the machines can't communicate?
Thank you very much in advance and if you need any other information I would be glad to give it to you.
I wish you a very happy festive season!
Jérôme
I'm currently trying to use some virtual machines that I run with the command
Code:
sudo qemu-system-x86_64 -machine accel=kvm:tcg -cpu host -m 2048 -drive file=main.qcow2,format=qcow2,if=virtio -daemonizeFor this purpose, I have created a bridge br0 with NetworkManager. Here are the active connections of nmcli :
Code:
nmcli c show "bridge-br0"Code:
connection.id: bridge-br0connection.uuid: da5be449-65d1-4904-b695-b424dc297628
connection.stable-id: --
connection.type: bridge
connection.interface-name: br0
connection.autoconnect: yes
connection.autoconnect-priority: 0
connection.autoconnect-retries: -1 (default)
connection.auth-retries: -1
connection.timestamp: 1577231558
connection.read-only: no
connection.permissions: --
connection.zone: --
connection.master: --
connection.slave-type: --
connection.autoconnect-slaves: -1 (default)
connection.secondaries: --
connection.gateway-ping-timeout: 0
connection.metered: unknown
connection.lldp: default
connection.mdns: -1 (default)
ipv4.method: auto
ipv4.dns: --
ipv4.dns-search: --
ipv4.dns-options: ""
ipv4.dns-priority: 0
ipv4.addresses: --
ipv4.gateway: --
ipv4.routes: --
ipv4.route-metric: -1
ipv4.route-table: 0 (unspec)
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv4.dhcp-client-id: --
ipv4.dhcp-timeout: 0 (default)
ipv4.dhcp-send-hostname: yes
ipv4.dhcp-hostname: --
ipv4.dhcp-fqdn: --
ipv4.never-default: no
ipv4.may-fail: yes
ipv4.dad-timeout: -1 (default)
ipv6.method: auto
ipv6.dns: --
ipv6.dns-search: --
ipv6.dns-options: ""
ipv6.dns-priority: 0
ipv6.addresses: --
ipv6.gateway: --
ipv6.routes: --
ipv6.route-metric: -1
ipv6.route-table: 0 (unspec)
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
ipv6.never-default: noCode:
nmcli c show "bridge-slave-eno2Code:
connection.id: bridge-slave-eno2connection.uuid: fb047c16-15ba-4339-aa25-e36fdf2c39f6
connection.stable-id: --
connection.type: 802-3-ethernet
connection.interface-name: eno2
connection.autoconnect: yes
connection.autoconnect-priority: 0
connection.autoconnect-retries: -1 (default)
connection.auth-retries: -1
connection.timestamp: 1577231558
connection.read-only: no
connection.permissions: --
connection.zone: --
connection.master: br0
connection.slave-type: bridge
connection.autoconnect-slaves: -1 (default)
connection.secondaries: --
connection.gateway-ping-timeout: 0
connection.metered: unknown
connection.lldp: default
connection.mdns: -1 (default)
802-3-ethernet.port: --
802-3-ethernet.speed: 0
802-3-ethernet.duplex: --
802-3-ethernet.auto-negotiate: no
802-3-ethernet.mac-address: --
802-3-ethernet.cloned-mac-address: --
802-3-ethernet.generate-mac-address-mask:--
802-3-ethernet.mac-address-blacklist: --
802-3-ethernet.mtu: auto
802-3-ethernet.s390-subchannels: --
802-3-ethernet.s390-nettype: --
802-3-ethernet.s390-options: --
802-3-ethernet.wake-on-lan: default
802-3-ethernet.wake-on-lan-password: --
bridge-port.priority: 32
bridge-port.path-cost: 100
bridge-port.hairpin-mode: no
GENERAL.NAME: bridge-slave-eno2
GENERAL.UUID: fb047c16-15ba-4339-aa25-e36fdf2c39f6
GENERAL.DEVICES: eno2
GENERAL.STATE: activated
GENERAL.DEFAULT: no
GENERAL.DEFAULT6: no
GENERAL.SPEC-OBJECT: --
GENERAL.VPN: no
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/ActiveConnection/7
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/Settings/4
GENERAL.ZONE: --
GENERAL.MASTER-PATH: /org/freedesktop/NetworkManager/Devices/3
IP4.GATEWAY: --
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = ff00::/8, nh = ::, mt = 256, table=255Code:
network:
ethernets:
addresses: [192.168.122.42/24]
gateway4: 192.168.1.1
nameservers:
addresses: [8.8.8.8,8.8.4.4]
dhcp4: yes
version: 2Thank you very much in advance and if you need any other information I would be glad to give it to you.
I wish you a very happy festive season!
Jérôme