1. ip address

能够简写为 ip a。

查看 IP 地址

[root@localhost ~]# ip a1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00  inet 127.0.0.1/8 scope host lo     valid_lft forever preferred_lft forever  inet6 ::1/128 scope host     valid_lft forever preferred_lft forever...

增加 IP 地址

[root@localhost ~]# ip address add dev tap1 10.0.0.1/24

删除 IP 地址

[root@localhost ~]# ip address delete dev tap1 10.0.0.1/24

清空 IP 地址

[root@localhost ~]# ip address flush dev tap1

2. ip link

能够简写为 ip l。

查看设施

[root@localhost ~]# ip l1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:002: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000  link/ether 52:54:00:a4:18:9b brd ff:ff:ff:ff:ff:ff...

启停设施

[root@localhost ~]# ip link set dev tap1 up[root@localhost ~]# ip link set dev tap1 down

网桥操作

# 创立网桥[root@localhost ~]# ip link add name br0 type bridge# 挂载接口[root@localhost ~]# ip link set dev tap1 master br0# 移除接口[root@localhost ~]# ip link set dev tap1 nomaster

创立 VXLAN 隧道

[root@localhost ~]# ip link add name tun0 type vxlan id 42 dstport 4789 remote 192.168.1.20 local 192.168.1.10

删除设施

[root@localhost ~]# ip link delete dev br0

3. ip route

能够简写为 ip r。

查看路由表

[root@localhost ~]# ip rdefault via 192.168.122.1 dev eth0192.168.122.0/24 dev eth0  proto kernel  scope link  src 192.168.122.106

增加路由

# 10.0.0.0/24: 目标网络# 10.0.0.1: 下一跳路由器的 IP# dev tap1: 数据包出接口[root@localhost ~]# ip route add to 10.0.0.0/24 via 10.0.0.1 dev tap1# 默认路由[root@localhost ~]# ip route add default via 192.168.1.1 dev eth0

删除路由

[root@localhost ~]# ip route delete to 10.0.0.0/24

4. ip neigh

可简写为 ip n。

查看 ARP 映射表

# lladdr: 链路层地址[root@localhost ~]# ip n192.168.122.1 dev eth0 lladdr 52:54:00:95:7c:07 STALE10.0.0.2 dev tap1  FAILED

增加 ARP 映射

# dev eth0: 通过 eth0 网卡可达 202.38.247.220[root@localhost ~]# ip neigh add 202.38.247.220 lladdr 18:66:da:eb:df:92 dev eth0

删除 ARP 映射

[root@localhost ~]# ip neigh delete 202.38.247.220 dev eth0