Add fedora 22 install docs warning about systemd-network

With systemd in version 219 IP forwarding should be forced in the interface configuration file.

Signed-off-by: yyekhlef <yyekhlef@gmail.com>
This commit is contained in:
Youcef YEKHLEF 2015-08-04 17:02:59 +02:00 committed by yyekhlef
parent f224a9f3d6
commit 35aebdc803
1 changed files with 3 additions and 1 deletions

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@ -208,7 +208,7 @@ learn how to [customize your Systemd Docker daemon options](/articles/systemd/).
## Running Docker with a manually-defined network
If you manually configure your network using `systemd-network` with fedora version 22, containers you start with Docker may be unable to access your network.
If you manually configure your network using `systemd-network` with `systemd` version 219 or higher, containers you start with Docker may be unable to access your network.
Beginning with version 220, the forwarding setting for a given network (`net.ipv4.conf.<interface>.forwarding`) defaults to *off*. This setting prevents IP forwarding. It also conflicts with Docker which enables the `net.ipv4.conf.all.forwarding` setting within a container.
To work around this, edit the `<interface>.network` file in
@ -218,6 +218,8 @@ To work around this, edit the `<interface>.network` file in
[Network]
...
IPForward=kernel
# OR
IPForward=true
...
```