rick.chan 39e3f417f2 补充 Linux 网络设置方法.
Signed-off-by: rick.chan <chen.yang@yuzhen-iot.com>
2021-12-27 14:51:42 +08:00

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# IPRoute2 说明
## Link 信息和设置
```bash
# 显示链路
ip link show
# 仅显示 up 的链路
ip link show up
# 添加链路
ip link add name <link name> type <bridge|bond|dummy|veth|vlan|vxlan>
# 启动/停止链路
ip link set <bridge name> <up/down>
# 绑定
ip link set <netif> master <bridge name>
# 解绑
ip link set <netif> nomaster
# 删除链路
ip link del name <bridge name> [type bridge]
```
## IP 地址信息和设置
```bash
# 显示地址(或ifconfig)
ip addr show
# 仅显示 up 设备的地址
ip addr show up
# 设定 IP 地址
ip addr add <ip addr> dev <netif>
# 删除 IP 地址
ip addr del <ip addr> dev <netif>
```
## 路由信息和设置
```bash
# 显示路由(route -n)
ip route show
# 添加路由
ip route add <ip addr> via <gateway>
ip route add <ip addr> dev <netif>
# 删除接口路由
ip route del default dev <netif>
# 查看本地静态路由
ip route show table local
# 查看直连路由
ip route show table main
```
## ARP
```bash
# 显示 arp 表(ping 192.168.95.50,如果主机在同一局域网内,直接加到 arp 表)
ip neigh show
# 删除 arp 条目,条目仍然存在状态为 stale下次通信需要确认
ip neigh delete 192.168.95.50 dev <netif>
```
## 其他
```bash
# 显示缺省规则
ip rule show
```