Run openwrt on docker under Raspi4

苏子季、

August 27, 2022

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1987 words

Linux

# Run openwrt on docker under Raspi4

## Ready works

### 1. Open mixed network on reaspi4

```bash
bash > sudo ip link set eth0 promisc on
```

### 2. Create the macvlan network

> Note : Fill out the `xxxxx`

```bash
bash > docker network create -d macvlan -subnet=192.168.xxx.x/24 -gateway=192.168.xxx.1 -o parent=eth0 macnet
```

### 3. Check the networks

```bash
bash > docker network ls 
```

### 4. Pull latest docker images

```bash
# https://hub.docker.com/r/sulinggg/openwrt
bash > docker pull sulinggg/openwrt:rpi4
```

## Start Config

### 1. Create Container

```bash
bash > docker run –restart always –name openwrt -d –network macnet -v /etc/resolv.conf:/etc/resolv.conf –privileged sulinggg/openwrt:rpi4 /sbin/init
```

### 2. Config Container Network

```bash
# enter the container
bash > docker exec -it openwrt sh

# alter config ****
bash > vim /etc/config/network

# restart container network
bash > /etc/init.d/network restart
```

---

```config
config interface 'lan'
        option type 'bridge'
        option ifname 'eth0'
        option proto 'static'
        option ipaddr '192.168.xxx.10'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option gateway '192.168.xxx.1'
        option broadcast '192.168.xxx.255'
        option dns '192.168.xxx.1'
```

### 3. Firewall Setting

```config
# One eth0
iptables -t nat -I POSTROUTING -o eth0 -j MASQUERADE
```

## Some Attention

### 1. Raspi4 network problem

> Comfirm the network config in your raspi4

```bash
bash > vim /etc/network/interfaces
```

---

```config
auto eth0
iface eth0 inet manual

auto macvlan
iface macvlan inet static
  address 192.168.xxx.xxx
  netmask 255.255.255.0
  gateway 192.168.xxx.xxx
  dns-nameservers 192.168.xxx.xxx
  pre-up ip link add macvlan link eth0 type macvlan mode bridge
  post-down ip link del macvlan link eth0 type macvlan mode bridge
```

Last modification：September 3, 2022