# Troubleshooting IP Address Assignment for Scientific Linux 6.x

Scientific Linux 6.x EPEL supports cloud-init version 0.7.4. This version of cloud-init has two known issues related to IP assignment to virtual machines (VM).

a) [Parse error for ifcfg-eth0](https://bugs.launchpad.net/cloud-init/+bug/1448594) - If the image or snapshot that the VM is being created from has existing static network configuration, cloud-init may not assign it a new IP address due to an error parsing its network interfaces.

b) Network assignment fails if the network is already up [\[1\]](https://bugs.launchpad.net/cloud-init/+bug/1275098)[\[2\]](https://bugs.launchpad.net/cloud-init/+bug/1225922) - if after booting up a VM already has an IP address assigned to it, cloud-init fails to re-assign a new IP address to the VM.

The attached update to cloud-init 0.7.4 (cloud-init-0.7.4-2.noarch.rpm) addresses both these issues.

You will need to first uninstall any existing version of cloud-init installed on your VM, before installing the provided rpm. Follow these instructions for that process:

{% tabs %}
{% tab title="Scientific Linux" %}

```none
yum erase cloud-init
yum install ./cloud-init-0.7.4-2.noarch.rpm
```

{% endtab %}
{% endtabs %}


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