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February 13, 2023 19:30
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Hetzner Cloud netplan configuration for IPv4+IPv6 (Dual Stack)
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| # /etc/netplan/50-cloud-init.yml | |
| # Ensure that other netplan config yml files in /etc/netplan/ don't interfere with this configuration | |
| network: | |
| version: 2 | |
| renderer: networkd | |
| ethernets: | |
| ens3: # (Primary interface, usually ens3 or ens33 on recent Ubuntus) | |
| addresses: | |
| - <Hetzner instance IP4>/32 | |
| - <Hetzner instance IP6>::1/64 | |
| routes: | |
| - to: 0.0.0.0/0 | |
| via: 172.31.1.1 | |
| on-link: true | |
| gateway6: fe80::1 | |
| accept-ra: true # needs to be enabled! | |
| nameservers: | |
| addresses: # (Hetzner DNS servers) | |
| - 213.133.98.98 | |
| - 213.133.99.99 | |
| - 213.133.100.100 | |
| - 2a01:4f8:0:1::add:1010 | |
| - 2a01:4f8:0:1::add:9999 | |
| - 2a01:4f8:0:1::add:9898 |
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@frennkie thanks for the reply. I've tried grub line and that not worked for me on ubuntu20.04 (can't connect to my server). I've found cause of my problem. If any ipv6 settings is used in your config file, ipv6 will be enabled. Since this pull request, networkd just ignores what in sysctl.conf. Solution that worked for me is remove all ipv6 configuration from netplan.yml.