[FZH] Fedora Docker Container Network problems

Nicol TAO nicol_tao at 126.com
Mon Oct 12 03:02:06 UTC 2015


Hello!

    I want to ask a question about Docker.
    I installed VMware Workstation 10 in Windows7 as host, and the guest OS is fedora 22 with latest updates.
    I installed the latest docker, and running
        sudo docker run -i -t centos:latest ping 8.8.4.4
    But I found all the containers can not access wider Internet, I have tried fedora's docker, and official
    docker-engine, they all do not work.

    I am using default docker0 bridge, and my network configuration is:
        Host OS(192.168.200.1) <--> VMware NAT(192.168.200.2) <--> Fedora Guest(192.168.200.137) <--> docker0(172.17.42.1) <--> container(172.17.0.4)
   
    I can run ping from container with 172.17.42.1 AND 192.168.200.137 OK, but I can not access 192.168.200.2 and later networks.
   
    I also installed other OS(debian) with the same VMWare configuration, the network works fine. So I figure whether it is fedora's problem.

    Does the Vmware+fedora22 can fully support docker network and functions ?


[root在localhost ~]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         gateway         0.0.0.0         UG    0      0        0 eth0
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
192.168.200.0   0.0.0.0         255.255.255.0   U     0      0        0 eth0


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