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add documentation for running VM with bridged network in NAT mode

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Douze Bé 2024-12-13 10:49:36 +01:00
parent 8b6aa777ab
commit 9a04ca03a3
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how-to-run-a-vm-with-nat-bridged-network.md Normal file
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create a bridge configuration file, /tmp/virbro.xml :
```xml
<network>
<name>default</name>
<uuid>9014424a-8422-40ec-94d1-9f593b98cb7a</uuid>
<forward mode="nat"/>
<bridge name="virbr0" stp="on" delay="0"/>
<mac address="52:54:00:ed:60:11"/>
<ip address="192.168.122.1" netmask="255.255.255.0">
<dhcp>
<range start="192.168.122.2" end="192.168.122.254"/>
</dhcp>
</ip>
</network>
```
apply bridge configuration :
```sh
virsh net-define /tmp/virbr0.xml
virsh net-start virbr0
```
optionnaly, make it to auto start :
```sh
virsh net-autostart virbr0
```
copy the VM start script
```sh
cp /nix/store/iim2hsbfj7kbxfygn741ica52fka6xk3-nixos-vm/bin/run-hedgedoc-vm ./run-vm-2
```
change network options :
```sh
< -net nic,netdev=user.0,model=virtio -netdev user,id=user.0,"$QEMU_NET_OPTS" \
---
> -net nic,netdev=user.0,model=virtio -netdev bridge,br=virbr0,id=user.0,"$QEMU_NET_OPTS" \
```
run the VM :
```sh
QEMU_NET_OPTS=helper=/run/wrappers/bin/qemu-bridge-helper ./run-vm-2
```