Docker容器启动报WARNING: IPv4 forwarding is disabled.bridge-nf-call-iptables is disabled
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centos 7 Docker容器启动报WARNING: IPv4 forwarding is disabled. Networking will not work
问题:如题
,启动成功,运行命令
docker info报错:
IPv4 forwarding is disabled
WARN:docker bridge-nf-call-iptables is disabled,
WARN:docker bridge-nf-call-ip6tables is disabled
解决办法:
# vi /etc/sysctl.conf
或者
# vi /usr/lib/sysctl.d/00-system.conf
添加如下代码:
net.ipv4.ip_forward=1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-arptables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-arptables = 1
重启network服务
# systemctl restart network
查看是否修改成功
# sysctl net.ipv4.ip_forward
如果返回为“net.ipv4.ip_forward = 1”则表示成功了
这时,重启容器即可。
另外还可以通过run时加-p 参数指定IP的方式来解决,比如 -p 0.0.0.0:999:999(指定ip就按ipv4来,否则默认全部是ipv6的。)
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