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+---
+title: Disable IPv6 on Proxmox
+description: How to permanently disable IPv6 on Proxmox VE Server.
+template: comments.html
+tags: [proxmox, ipv6]
+---
+
+# Disable IPv6 on Proxmox Permanently
+
+By default, Proxmox IPv6 is enabled after installation. This means that the IPv6 stack is active and the host can communicate with other hosts on the same network via IPv6 protocol.
+
+Output of `ip addr` command:
+
+![Default IPv6 Proxmox][default-ipv6-proxmox-img]
+
+You can disable IPv6 on Proxmox VE by editing the `/etc/default/grub` file.
+
+```shell
+nano /etc/default/grub
+```
+
+add `ipv6.disable=1` to the end of `GRUB_CMDLINE_LINUX_DEFAULT` and `GRUB_CMDLINE_LINUX` line. Don't change the other values at those lines.
+
+```bash
+GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1"
+GRUB_CMDLINE_LINUX="ipv6.disable=1"
+```
+
+The config should look like this:
+
+![Grub Configuration][grub-configuration-img]
+
+Update the grub configuration.
+
+```shell
+update-grub
+```
+
+Save and exit. Reboot Proxmox Server to apply the changes.
+
+Output of `ip addr` command after disabling IPv6 on Proxmox VE:
+
+![No IPv6 Proxmox Image][no-ipv6-proxmox-img]
+
+<!-- appendices -->
+
+<!-- urls -->
+
+<!-- images -->
+
+[default-ipv6-proxmox-img]: ../../../assets/images/1ee15c1c-bd9a-11ec-926f-3b1ee33b95ee.jpg 'Default IPv6 Proxmox Image'
+[grub-configuration-img]: ../../../assets/images/f1f18772-f881-11ec-9918-afad89ede03c.jpg 'Grub Configuration'
+[no-ipv6-proxmox-img]: ../../../assets/images/542c7a30-bd9c-11ec-848e-932ce851a8c3.jpg 'No IPv6 Proxmox Image'
+
+<!-- end appendices -->