---
title: "rc_khaganat_project"
date: 2017-02-16T09:14:00
date_display: Feb 16, 2017
---

# Creation and configuration of the bridge interface with archlinux

Debian based system ? no problem => [http://lesaventuresdeyannigdanslemondeit.blogspot.fr/2013/03/mise-en-place-dun-bridge-sous.html](http://lesaventuresdeyannigdanslemondeit.blogspot.fr/2013/03/mise-en-place-dun-bridge-sous.html)

RTFM : [https://wiki.archlinux.org/index.php/Systemd-networkd#Bridge_interface](https://wiki.archlinux.org/index.php/Systemd-networkd#Bridge_interface)

## Bridge interface

Create a virtual bridge interface `/etc/systemd/network/MyBridge.netdev`

```sh
[NetDev]
Name=br0
Kind=bridge
```


## Bind ethernet to bridge

Modify the `/etc/systemd/network/enp3s0.network` to remove the DHCP, as the bridge requires an interface to bind to with no IP, and add a key to bind this device to br0. Let us change its name to a more relevant one.

```sh
[Match]
Name=en*

[Network]
Bridge=br0
```

## Bridge network

Create a network profile for the Bridge `/etc/systemd/network/MyBridge.network`

```sh
[Match]
Name=br0

[Network]
DHCP=ipv4
```


Finnaly restart `systemd-networkd.service`

# Qemu config for use bridge

RTFM : [https://wiki.archlinux.org/index.php/QEMU#Bridged_networking_using_qemu-bridge-helper](https://wiki.archlinux.org/index.php/QEMU#Bridged_networking_using_qemu-bridge-helper)

Edit file (if folder not exist, create it) : `/etc/qemu/bridge.conf`

```sh
allow bridge0
```

# Start qemu

RTFM : [https://khaganat.net/wikhan/fr:vm_server](https://khaganat.net/wikhan/fr:vm_server) & [https://khaganat.net/wikhan/fr:readonly:download](https://khaganat.net/wikhan/fr:readonly:download)

My magic command :

```sh
/usr/bin/qemu-system-x86_64 \
    -monitor stdio \
    -soundhw ac97 \
    -machine accel=kvm \
    -m 256 \
    -cdrom /home/neodarz/Téléchargements/VMdeKhanat/khanat-161115/khanat-161115.vmdk \
    -hda /home/neodarz/Téléchargements/VMdeKhanat/khanat-161115/khanat-161115.vmdk \
    -boot once=d,menu=off \
    -net nic,vlan=0 \
    -net user,vlan=0 \
    -net nic,vlan=1 \
    -net bridge,vlan=1,br=br0 \
    -rtc base=localtime \
    -name "ryzom core"
```

Some other docs : [https://khaganat.net/wikhan/fr:installer_vm_basique?s\[#documentation_sur_qemu](https://khaganat.net/wikhan/fr:installer_vm_basique?s\[#documentation_sur_qemu)