# # AUTHOR , YEAR. # msgid "" msgstr "" "Project-Id-Version: 0\n" "POT-Creation-Date: 2013-02-02T20:11:58\n" "PO-Revision-Date: 2013-02-02T20:11:58\n" "Last-Translator: Automatically generated\n" "Language-Team: None\n" "MIME-Version: 1.0\n" "Content-Type: application/x-publican; charset=UTF-8\n" "Content-Transfer-Encoding: 8bit\n" #. Tag: title #, no-c-format msgid "Configure the network bridges" msgstr "" #. Tag: para #, no-c-format msgid "This is a very important section, please make sure you read this thoroughly." msgstr "" #. Tag: para #, no-c-format msgid "This section details how to configure bridges using the native implementation in Linux. Please refer to the next section if you intend to use OpenVswitch" msgstr "" #. Tag: para #, no-c-format msgid "In order to forward traffic to your instances you will need at least two bridges: public and private." msgstr "" #. Tag: para #, no-c-format msgid "By default these bridges are called cloudbr0 and cloudbr1, but you do have to make sure they are available on each hypervisor." msgstr "" #. Tag: para #, no-c-format msgid "The most important factor is that you keep the configuration consistent on all your hypervisors." msgstr "" #. Tag: title #, no-c-format msgid "Network example" msgstr "" #. Tag: para #, no-c-format msgid "There are many ways to configure your network. In the Basic networking mode you should have two (V)LAN's, one for your private network and one for the public network." msgstr "" #. Tag: para #, no-c-format msgid "We assume that the hypervisor has one NIC (eth0) with three tagged VLAN's:" msgstr "" #. Tag: para #, no-c-format msgid "VLAN 100 for management of the hypervisor" msgstr "" #. Tag: para #, no-c-format msgid "VLAN 200 for public network of the instances (cloudbr0)" msgstr "" #. Tag: para #, no-c-format msgid "VLAN 300 for private network of the instances (cloudbr1)" msgstr "" #. Tag: para #, no-c-format msgid "On VLAN 100 we give the Hypervisor the IP-Address 192.168.42.11/24 with the gateway 192.168.42.1" msgstr "" #. Tag: para #, no-c-format msgid "The Hypervisor and Management server don't have to be in the same subnet!" msgstr "" #. Tag: title #, no-c-format msgid "Configuring the network bridges" msgstr "" #. Tag: para #, no-c-format msgid "It depends on the distribution you are using how to configure these, below you'll find examples for RHEL/CentOS and Ubuntu." msgstr "" #. Tag: para #, no-c-format msgid "The goal is to have two bridges called 'cloudbr0' and 'cloudbr1' after this section. This should be used as a guideline only. The exact configuration will depend on your network layout." msgstr "" #. Tag: title #, no-c-format msgid "Configure in RHEL or CentOS" msgstr "" #. Tag: para #, no-c-format msgid "The required packages were installed when libvirt was installed, we can proceed to configuring the network." msgstr "" #. Tag: para #, no-c-format msgid "First we configure eth0" msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/sysconfig/network-scripts/ifcfg-eth0" msgstr "" #. Tag: para #, no-c-format msgid "Make sure it looks similair to:" msgstr "" #. Tag: programlisting #, no-c-format msgid "DEVICE=eth0\n" "HWADDR=00:04:xx:xx:xx:xx\n" "ONBOOT=yes\n" "HOTPLUG=no\n" "BOOTPROTO=none\n" "TYPE=Ethernet" msgstr "" #. Tag: para #, no-c-format msgid "We now have to configure the three VLAN interfaces:" msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/sysconfig/network-scripts/ifcfg-eth0.100" msgstr "" #. Tag: programlisting #, no-c-format msgid "DEVICE=eth0.100\n" "HWADDR=00:04:xx:xx:xx:xx\n" "ONBOOT=yes\n" "HOTPLUG=no\n" "BOOTPROTO=none\n" "TYPE=Ethernet\n" "VLAN=yes\n" "IPADDR=192.168.42.11\n" "GATEWAY=192.168.42.1\n" "NETMASK=255.255.255.0" msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/sysconfig/network-scripts/ifcfg-eth0.200" msgstr "" #. Tag: programlisting #, no-c-format msgid "DEVICE=eth0.200\n" "HWADDR=00:04:xx:xx:xx:xx\n" "ONBOOT=yes\n" "HOTPLUG=no\n" "BOOTPROTO=none\n" "TYPE=Ethernet\n" "VLAN=yes\n" "BRIDGE=cloudbr0" msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/sysconfig/network-scripts/ifcfg-eth0.300" msgstr "" #. Tag: programlisting #, no-c-format msgid "DEVICE=eth0.300\n" "HWADDR=00:04:xx:xx:xx:xx\n" "ONBOOT=yes\n" "HOTPLUG=no\n" "BOOTPROTO=none\n" "TYPE=Ethernet\n" "VLAN=yes\n" "BRIDGE=cloudbr1" msgstr "" #. Tag: para #, no-c-format msgid "Now we have the VLAN interfaces configured we can add the bridges on top of them." msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/sysconfig/network-scripts/ifcfg-cloudbr0" msgstr "" #. Tag: para #, no-c-format msgid "Now we just configure it is a plain bridge without an IP-Adress" msgstr "" #. Tag: programlisting #, no-c-format msgid "DEVICE=cloudbr0\n" "TYPE=Bridge\n" "ONBOOT=yes\n" "BOOTPROTO=none\n" "IPV6INIT=no\n" "IPV6_AUTOCONF=no\n" "DELAY=5\n" "STP=yes" msgstr "" #. Tag: para #, no-c-format msgid "We do the same for cloudbr1" msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/sysconfig/network-scripts/ifcfg-cloudbr1" msgstr "" #. Tag: programlisting #, no-c-format msgid "DEVICE=cloudbr1\n" "TYPE=Bridge\n" "ONBOOT=yes\n" "BOOTPROTO=none\n" "IPV6INIT=no\n" "IPV6_AUTOCONF=no\n" "DELAY=5\n" "STP=yes" msgstr "" #. Tag: para #, no-c-format msgid "With this configuration you should be able to restart the network, although a reboot is recommended to see if everything works properly." msgstr "" #. Tag: para #, no-c-format msgid "Make sure you have an alternative way like IPMI or ILO to reach the machine in case you made a configuration error and the network stops functioning!" msgstr "" #. Tag: title #, no-c-format msgid "Configure in Ubuntu" msgstr "" #. Tag: para #, no-c-format msgid "All the required packages were installed when you installed libvirt, so we only have to configure the network." msgstr "" #. Tag: programlisting #, no-c-format msgid "vi /etc/network/interfaces" msgstr "" #. Tag: para #, no-c-format msgid "Modify the interfaces file to look like this:" msgstr "" #. Tag: programlisting #, no-c-format msgid "auto lo\n" "iface lo inet loopback\n" "\n" "# The primary network interface\n" "auto eth0.100\n" "iface eth0.100 inet static\n" " address 192.168.42.11\n" " netmask 255.255.255.240\n" " gateway 192.168.42.1\n" " dns-nameservers 8.8.8.8 8.8.4.4\n" " dns-domain lab.example.org\n" "\n" "# Public network\n" "auto cloudbr0\n" "iface cloudbr0 inet manual\n" " bridge_ports eth0.200\n" " bridge_fd 5\n" " bridge_stp off\n" " bridge_maxwait 1\n" "\n" "# Private network\n" "auto cloudbr1\n" "iface cloudbr1 inet manual\n" " bridge_ports eth0.300\n" " bridge_fd 5\n" " bridge_stp off\n" " bridge_maxwait 1" msgstr ""