[one-users] IP(v6) network enhancements

[Stefan Kooman]

Hi List,

While deploying some vm's with IPv4/IPv6 (dual stack) support I ran into
some issues. I would like to be able to choose (switch "on" or "off")
the use of IPv6 in a "dual stack" vnet, i.e. It's possible to enforce
IPv4 address generation in a "IPv6" network but it's not possible (as
far as I can see) to disable IPv6 in a IPv6/IPv4 network (dual stack as
I call it).  I would like to avoid having two different vnet's, one for
IPv6 and one for IPv4 just to be able to be able to provide vm's with:
1) IPv4 only, 2) IPv6 only, 3) two different interfaces, one for IPv4
and one for IPv6. Of course there are ways to disable IPv6 on the vm
itself (just not load ipv6 modules for example) but it would be cleaner
to fix this with contextualization.

With IPv4 vnet it's possible to choose an ip address. With IPv6 vnet
it's automatically generated based on the mac-address. It's currently
not possible to choose your IPv6 address. One common practice is to use
"IPv4" address in "IPv6" address. Example: IPv4 192.0.2.33, IPv6
2001:db8:122:344:192:0:2:33 (note this is not truly mapping ipv4 into
ipv6, as described in rfc4291). 

Some vm's need more that one IP(v4/v6) address. For example webservers
handling multple SSL websites. Currently I can't create an ip "alias"
for a virtual machine. A workaround would be to hold a lease and
manually adding this ip to the vm. It would be nicer to have support for
ip aliases. This feature would complement issue #1818 [1].

If some of what I described above is already possible please point me
the documentation.

Gr. Stefan

[1]: http://dev.opennebula.org/issues/1818



-- 
| BIT BV  http://www.bit.nl/        Kamer van Koophandel 09090351
| GPG: 0xD14839C6                   +31 318 648 688 / info at bit.nl
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 230 bytes
Desc: Digital signature
URL: <http://lists.opennebula.org/pipermail/users-opennebula.org/attachments/20140127/fbd6fcc5/attachment-0001.pgp>