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LanguageDensity @lemmy.world
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Has anyone got IPv6 working in Proxmox debian LXCs?

  • Ok, thanks, guess I'll stick with Ubuntu 20.04 for as long as possible, hopefully IPv6 support improves until then. I'm really surprised by the amount of IPv6 bugs in Debian, some of them even over a decade old, for example simply not being able to configure sssd without IPv4.

    • Proxmox @lemmy.world LanguageDensity @lemmy.world

    Has anyone got IPv6 working in Debian LXCs?

    cross-posted from: https://lemmy.world/post/1520963

    > I have tried using the debian 10/11/12 LXC templates on Proxmox, but I can't get IPv6 to work as expected. Which is weird, since just setting IPv6 to SLAAC/auto works as expected for ubuntu 20.04 containers with no additional configuration in the container itself. > > What I encountered: > 1. Debian overrides the DNS settings set in proxmox with values from DHCP > 1. DHCPv6 DNS updates required manually setting send fqdn.fqdn "..."; in dhclient.conf > 1. DHCPv6 DNS updates only work when manually calling dhclient -6 > > Those all can be fixed, but are bit of a pain, since I have to manually update configuration files in the container itself. I also have to duplicate the configuration, for example the hostname/domain name in the configuration. > > Has anyone got IPv6 working on debian LXCs without any additional config in each container? Or any ideas what's different between the debian and ubuntu LXCs?

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    Has anyone got IPv6 working in Proxmox debian LXCs?

  • Yeah, SLAAC works as expected on Debian 10-12 LXCs as well, only DHCPv6 has issues.

    • Selfhosted @lemmy.world LanguageDensity @lemmy.world

    Has anyone got IPv6 working in Proxmox debian LXCs?

    I have tried using the debian 10/11/12 LXC templates on Proxmox, but I can't get IPv6 to work as expected. Which is weird, since just setting IPv6 to SLAAC/auto works as expected for ubuntu 20.04 containers with no additional configuration in the container itself.

    What I encountered:

    1. Debian overrides the DNS settings set in proxmox with values from DHCP
    2. DHCPv6 DNS updates required manually setting send fqdn.fqdn "..."; in dhclient.conf
    3. DHCPv6 DNS updates only work when manually calling dhclient -6

    Those all can be fixed, but are bit of a pain, since I have to manually update configuration files in the container itself. I also have to duplicate the configuration, for example the hostname/domain name in the configuration.

    Has anyone got IPv6 working on debian LXCs without any additional config in each container? Or any ideas what's different between the debian and ubuntu LXCs?

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