Network Management

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Occasional Contributor I
Posts: 7
Registered: ‎02-21-2014

AirWave 8.2.3 won't talk to 172.17.0.0/16 addresses.

Ran into a bit of an issue today with upgrading to AirWave 8.2.3.

Seems the docker service was added in with the default network bridge.

 

The default bridge is 172.17.0.0/16 and is connected so all traffic going to 172.17.0.0-172.17.255.255 will go to the docker0 interface rather than eth0. 

 

Waiting to hear back from TAC, but using the Docker documentation this seems to work. 

https://docs.docker.com/v1.7/articles/networking/#docker0 

 

Login as root on the console/ssh:

Commands:

Stop the service

  • service docker stop

Bring the interface down

  • ip link set dev docker0 down

Delete the interface

  • brctl delbr docker0

Modify the configuration to use the new IP address

  • vi /etc/sysconfig/docker
  • add: --bip=x.x.x.x/xx to the other_args=”” line so it looks like this now:
    other_args="--bip=10.1.1.1/24"

Start the service

  • service docker start

ifconfig to confirm docker0 has been changed.

 

 

Aruba Employee
Posts: 12
Registered: ‎05-13-2014

Re: AirWave 8.2.3 won't talk to 172.17.0.0/16 addresses.

Would you mind sharing the TAC case / ticket number?

Occasional Contributor I
Posts: 7
Registered: ‎02-21-2014

Re: AirWave 8.2.3 won't talk to 172.17.0.0/16 addresses.

5316172332

Aruba Employee
Posts: 12
Registered: ‎05-13-2014

Re: AirWave 8.2.3 won't talk to 172.17.0.0/16 addresses.

Here is what our engineering team came back with:

 

To delete the interface, we can execute the below commands:

 

[root@localhost mercury]# sudo ip link delete docker0 type bridge

[root@localhost mercury]# service network restart

 

To change the IP Address of the docker interface, we can execute the below commands:

 

[root@localhost mercury]# ip addr add 127.0.0.2/16 dev docker0

[root@localhost mercury]# service network restart

 

Let us know if this works or if you need more assistance.  

Occasional Contributor I
Posts: 7
Registered: ‎02-21-2014

Re: AirWave 8.2.3 won't talk to 172.17.0.0/16 addresses.

Looks like an upgrade to 8.2.3.1 restores the configuration.

 

From the CLI to disable the service from start up.

SSH in as root, and run the following commands:

chkconfig docker off
chkconfig docker --del

 

To restore:

chkconfig docker --add

chkconfig docker off 2,3,4,5

 

 

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