openwrt使用技巧

FW4永久添加策略

#编辑/etc/config/firewall
vi /etc/config/firewall
```
config include 'costom'
        option path '/etc/firewall.user'
        option fw4_compatible '1'
```

#新建/etc/firewall.user
vi /etc/firewall.user
nft add rule inet fw4 dstnat ip saddr 172.16.0.0/12 udp dport 53 redirect to :5553
nft add rule inet fw4 dstnat ip saddr 172.16.0.0/12 tcp dport 53 redirect to :5553

#重载
fw4 reload