Ubuntu上利用nmcli配置br0桥接网卡

1. 创建br0网桥

sudo nmcli connection add ifname br0 type bridge con-name br0

sudo nmcli connection add type bridge-slave ifname eth0 master br0 #可能不是eth0

2. 为网桥启用或者禁用STP(可选)

sudo nmcli connection modify br0 bridge.stp no

3.为网桥配置ipv4静态地址

sudo nmcli connection modify br0 ipv4.method manual

sudo nmcli connection modify br0 ipv6.method disabled

sudo nmcli connection modify br0 ipv4.addresses '192.168.10.183/24'

sudo nmcli connection modify br0 ipv4.gateway '192.168.10.1'

sudo nmcli connection modify br0 ipv4.dns '192.168.10.1'

4. 删除eth0

如果删除有问题，可以通过nmtui图形页面删除

sudo nmcli connection delete eth0 #可能不是eth0

5.启动网桥

sudo nmcli connection up br0

配置内核参数

cat >> /etc/sysctl.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
EOF