Docker中网络不通报错：WARNING: IPv4 forwarding is disabled. Networki..解决

非著名运维

发布于 2022-06-22 14:39:26

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发布于 2022-06-22 14:39:26

文章被收录于专栏：非著名运维

报错信息：

[root@localhost ~]# docker run -itd --name jenkins -p 8080:8080 -v /mnt/app/jenkins/:/mnt/ --restart=always jenkinsci/blueocean
WARNING: IPv4 forwarding is disabled. Networking will not work.  //警告信息

[root@localhost ~]# docker info    //有警告信息
......
WARNING: IPv4 forwarding is disabled
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled

环境介绍：

CentOS 7.5 Docker 19.03.8 Docker-compose 1.25.4

解决办法：

1.编辑配置文件/etc/sysctl.conf

新增以下内容： net.bridge.bridge-nf-call-ip6tables=1 net.bridge.bridge-nf-call-iptables=1 net.bridge.bridge-nf-call-arptables=1 net.ipv4.ip_forward=1

[root@localhost ~]# vim /etc/sysctl.conf    
...
net.bridge.bridge-nf-call-ip6tables=1
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-arptables=1
net.ipv4.ip_forward=1

[root@localhost ~]# systemctl restart network      //重启网络配置

2.再次查看docker info，已无警告信息

[root@localhost ~]# docker info
......
 Live Restore Enabled: false

3.重新创建容器，也再无ipv4转发问题警告信息

[root@localhost ~]# docker run -itd --name jenkins -p 8080:8080 -v /mnt/app/jenkins/:/mnt/ --restart=always jenkinsci/blueocean

f7de66534c084cc54feda20badc1fc5aca49a876a2f0473a62c7372f34acb23d

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原始发表：2020-06-30，如有侵权请联系 cloudcommunity@tencent.com 删除

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