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venet ip question [message #45369]

Tue, 28 February 2012 16:30

Gerhard Gappmeier
Messages: 2
Registered: February 2012

Junior Member

Hi

I currently have two OpenVZ machines with same configuration.
CT0 has two network devices:
eth0: internal private subnet
eth1: internet

The containers can have internal and/or external IPs.
Access is controlled by iptables in CT0.
I only use IP based venet devices currently.

The problem is I run out of external IPs and want to use the external
IPs of CT0 (eth1) for new containers.

Is this possible? I'm not sure how venet IPs can be routed over eth1
when eth1 has no IP.

--
mit freundlichen Grüßen / best regards

*Gerhard Gappmeier*
ascolab GmbH - automation systems communication laboratory
Tel.: +49 9131 691 123
Fax: +49 9131 691 128
Web: http://www.ascolab.com
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Re: venet ip question [message #45400 is a reply to message #45369]

Fri, 02 March 2012 03:29

ragubhat
Messages: 9
Registered: August 2008
Location: India

Junior Member

Gerhard Gappmeier posts

>> problem is I run out of external IPs and want to use the external IPs of CT0 (eth1) for new containers.
>> Is this possible?

You may want to read this relevant doc at the OpenVZ Wiki

http://wiki.openvz.org/Using_NAT_for_VE_with_private_IPs

A similar issue was resolved here using this method, but you may have
to fine tune your run-level scripts to
make this rule persistent across reboots.

YMMV
--
Ragu Bhat
Help stop net censorship in India.
Censorship of Google, Yahoo, Facebook and Twitter has to stomped down!

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