[Users] IPv6, openVZ7, CentOS7

[Oleksiy Tkachenko]

Yes, br0 contains main server`s IPv4.
So I perform tuning and now my IPv6 address pingable - but from this node
only (and not on CTs on this node).
This node CTs or other internet places - they do not see my IPv6.
Other 2 secondary IPv6 addresses not even pingable from node.

My steps:
# nano -w /etc/sysconfig/network-scripts/ifcfg-br0
IPV6INIT=yes
IPV6_AUTOCONF=no
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6ADDR=myIPv6IP_1
IPV6ADDR_SECONDARIES=myIPv6IP_2 myIPv6IP_3
IPV6_DEFAULTGW=myIPv6GW

# nano -w /etc/sysconfig/network
NETWORKING_IPV6=yes
IPV6FORWARDING=yes
IPV6_DEFAULTDEV=br0
IPV6_DEFAULTGW=myIPv6GW
IPV6_AUTOCONF=no

# echo "net.ipv6.conf.default.forwarding = 1" >> /etc/sysctl.conf
# echo "net.ipv6.conf.all.forwarding = 1" >> /etc/sysctl.conf
# echo "net.ipv6.conf.all.proxy_ndp = 1" >> /etc/sysctl.conf
# sysctl -p

# nano -w /etc/sysconfig/iptables-config
IP6TABLES_MODULES="ip6_tables ip6table_filter ip6table_mangle ip6t_REJECT
nf_conntrack_ipv6"

# reboot -n

чт, 15 груд. 2022 р. о 14:34 Arjit Chaudhary <arjit.c at gmail.com> пише:

> Hi,
> It could be in br0 if you are bridging enp3s0f0 and/or enp3s0f1
>
> Basically the interface which lists as UP and with the IPv4 information
> etc should be the right one in my experience.
>
> But do back-up original configuration files on the system, before editing
> just incase something goes wrong you can just copy them back and restart
> networking.
>
>
> On Thu, 15 Dec, 2022, 17:40 Oleksiy Tkachenko, <mealexat at gmail.com> wrote:
>
>> I have many)
>> # ip a
>> 1: lo:
>> 2: enp3s0f0:
>> 3: enp3s0f1:
>> 4: enp0s20f0u9u2c2:
>> 5: br0:
>> 6: virbr0:
>> 7: virbr0-nic:
>> 8: venet0:
>> 9: host-routed:
>> 11: veth72240bcc at if3:
>> 12: veth720bed05 at if3:
>> 13: veth7290a381 at if3:
>> 16: veth721813e6 at if3:
>> 17: veth720a338a at if3:
>> 24: veth729a3460 at if3:
>> 25: veth720c6518 at if3:
>> 26: veth721bbb55 at if3:
>> 27: veth72705632 at if3:
>> 28: veth72b28dcd at if3:
>>
>>
>> чт, 15 груд. 2022 р. о 13:52 Arjit Chaudhary <arjit.c at gmail.com> пише:
>>
>>> Is your interface name different by chance?
>>>
>>> Can you check,
>>>
>>> > ip a
>>>
>>> for the actual interface name and then update that interface
>>> configuration for the IPv6.
>>>
>>> On Thu, 15 Dec, 2022, 16:43 Oleksiy Tkachenko, <mealexat at gmail.com>
>>> wrote:
>>>
>>>> Thank you!
>>>> During node preparation I need to update
>>>> "/etc/sysconfig/network-scripts/ifcfg-ethX" - but there is no such file.
>>>> I also need to put "eth0" in "/etc/sysconfig/network" file - is it
>>>> actual now (when I have no ethX file)?
>>>>
>>>> I also need to "Add 'ipt_state' to IPTABLES and 'nf_conntrack_ipv6' to
>>>> IP6TABLES" in "/etc/vz.conf" - there is no such file also.
>>>> I have "/etc/vz/vz.conf" on my bare metal openvz7 but there is no
>>>> "IPTABLES" or "IP6TABLES" mention at all.
>>>>
>>>>
>>>> чт, 15 груд. 2022 р. о 02:03 Arjit Chaudhary <arjit.c at gmail.com> пише:
>>>>
>>>>> (In my experience)
>>>>>
>>>>> Does the host-node have working IPv6 configured on it? If yes,
>>>>>
>>>>> Then you can just do,
>>>>>
>>>>> vzctl set <VMID> --ipadd <IPv6 Address> -- save
>>>>>
>>>>> and the container too will have working IPv6.
>>>>>
>>>>> If the host-node does not have working IPv6, then you can just
>>>>> configure any address of the IPv6 range on the host-node
>>>>>
>>>>>
>>>>> On Thu, Dec 15, 2022 at 4:15 AM UNLIM.SRV <srv at unlim.ua> wrote:
>>>>>
>>>>>> Trying to setup IPv6 for CentOS7 CT.
>>>>>> Seems original documentation outdated a bit (
>>>>>> https://wiki.openvz.org/IPv6).
>>>>>> Is there updated information?
>>>>>>
>>>>>> Thank you!
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Oleksiy
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at openvz.org
>>>>>> https://lists.openvz.org/mailman/listinfo/users
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Thanks,
>>>>> Arjit Chaudhary
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at openvz.org
>>>>> https://lists.openvz.org/mailman/listinfo/users
>>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at openvz.org
>>>> https://lists.openvz.org/mailman/listinfo/users
>>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at openvz.org
>>> https://lists.openvz.org/mailman/listinfo/users
>>>
>> _______________________________________________
>> Users mailing list
>> Users at openvz.org
>> https://lists.openvz.org/mailman/listinfo/users
>>
> _______________________________________________
> Users mailing list
> Users at openvz.org
> https://lists.openvz.org/mailman/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openvz.org/pipermail/users/attachments/20221215/f360ac70/attachment-0001.html>