> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/hacking-wifi/wpa-wpa2-psk-network-attacks/evil-twin/eviltwin-iptables-rules-and-network-interfaces.md).
# EvilTwin - iptables 规则与网络接口
为 EvilTwin 配置网络接口和 iptables 规则。
## iptables 规则和网络接口
启动 Airbase 以创建接入点。
### 创建 `at0` 接口
为接入点创建网络接口：
{% code overflow="wrap" %}
```bash
sudo ip tuntap add dev at0 mode tap
sudo ip link set at0 up
sudo ip addr add 192.168.1.129/25 dev at0
```
{% endcode %}
### 添加网络路由
为新子网添加路由：
{% code overflow="wrap" %}
```bash
route add -net 192.168.1.128 netmask 255.255.255.128 gw 192.168.1.129
```
{% endcode %}
配置应如下所示：
### 启用 IP 转发
设置 `ip_forward` 更改为 `1`:
{% code overflow="wrap" %}
```bash
echo 1 > /proc/sys/net/ipv4/ip_forward
```
{% endcode %}
### 清除 iptables 规则
清除现有规则：
{% code overflow="wrap" %}
```bash
sudo iptables --flush
sudo iptables --table nat --flush
sudo iptables --delete-chain
sudo iptables --table nat --delete-chain
```
{% endcode %}
### 验证规则
验证当前生效的规则：
{% code overflow="wrap" %}
```bash
iptables -S
iptables -L
```
{% endcode %}
### 配置转发和 NAT
配置外部接口以将流量转发到 `at0`。同时重定向 HTTP 流量：
{% code overflow="wrap" %}
```bash
iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE
iptables --append FORWARD --in-interface at0 -j ACCEPT
iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination $(hostname -I | awk '{print $1}'):80
iptables -t nat -A POSTROUTING -j MASQUERADE
```
{% endcode %}
---
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