Editing Virtual network device
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− | Virtual network device (<code>venet</code>) is the default network device for a [[container]]. | + | Virtual network device (<code>venet</code>) is the default network device for a [[container]]. This network device looks like a point-to-point connection between [[container]] and the [[CT0|host system]]. It does packet switching based on IP header. This is a default network device for container (an alternative is [[veth]] device). |
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Venet device is created automatically on [[container]] start. Vzctl scripts set up an appropriate IP address and other settings on venet inside a container. | Venet device is created automatically on [[container]] start. Vzctl scripts set up an appropriate IP address and other settings on venet inside a container. | ||
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vzctl set <CTID> --ipadd <IP1>[,<IP2>,...] [--save] | vzctl set <CTID> --ipadd <IP1>[,<IP2>,...] [--save] | ||
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{{Note|This option is incremental, so IP addresses are added to already existing ones.}} | {{Note|This option is incremental, so IP addresses are added to already existing ones.}} | ||
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==== Example ==== | ==== Example ==== | ||
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− | vzctl set 101 --ipadd 10.0.0.1 | + | vzctl set 101 --ipadd 10.0.0.1 --save |
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After executing this command IP address 10.0.0.1 will be added to container 101 and IP configuration will be saved to a container configuration file. | After executing this command IP address 10.0.0.1 will be added to container 101 and IP configuration will be saved to a container configuration file. | ||
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vzctl set 101 --ipdel 10.0.0.1 | vzctl set 101 --ipdel 10.0.0.1 | ||
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</pre> | </pre> | ||
After executing this command IP address 10.0.0.1 will be removed from container 101, but IP configuration will not be changed in container config file. And after container reboot IP address 10.0.0.1 will be assigned to this container again. | After executing this command IP address 10.0.0.1 will be removed from container 101, but IP configuration will not be changed in container config file. And after container reboot IP address 10.0.0.1 will be assigned to this container again. | ||
− | == | + | == Sysctl == |
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− | + | You will need to configure some sysctl parameters to get your venet devices working. | |
− | + | Please have a look at the [[Installation_on_Debian#sysctl]] section. | |
− | === | + | === IPv6 === |
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− | + | If you expect any problems with configuring IPv6 for your CTs, | |
− | + | this OpenVZ forum thread might help: | |
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− | + | http://forum.openvz.org/index.php?t=msg&goto=14752& | |
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== See also == | == See also == |