Enabling IPv6 on Your Service

Enabling IPv6 on Your Service

UP-NETWORK allows all VPS and dedicated servers to receive a full /64 IPv6 subnet. This guide explains how to enable IPv6, how to fix cases where the subnet was not assigned at deployment, and how to configure IPv6 on your operating system.

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Enabling IPv6 During Order

During the checkout process, you can enable the option:

✔ IPv6 /64 Subnet

If enabled, the service will automatically receive an IPv6 subnet during deployment.

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If IPv6 Was Not Enabled During Order

1

After delivery

Wait for your VPS or dedicated server to be delivered.

2

Edit service

Go to your service in the customer area and click Edit.

3

Enable IPv6 /64 Subnet

Enable IPv6 /64 Subnet and save.

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Important: First Deployment Behaviour

Sometimes, during the first deployment, the IPv6 block may not attach automatically. If your IPv6 /64 does not appear, try the steps below or wait a few seconds — the subnet often appears shortly after enabling it.

We recommend ALWAYS activating IPv6 after the service has been deployed, even if you selected it during checkout.

Fix — Toggle IPv6

1

Disable IPv6 and save.

2

Re-enable IPv6 and save again.

Fix — Wait

The subnet usually appears a few seconds after enabling it.

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Accessing Your IPv6 Subnet

Once IPv6 is enabled, your /64 subnet appears in:

• VPS: https://vps.upn.li

• Dedicated servers: Customer Area → Server Details

UP-NETWORK automatically assigns the first IPv6 of the /64.

Example:

• Subnet: 2a0e:xxxx:yyyy:zz00::/64

• Auto-assigned IP: 2a0e:xxxx:yyyy:zz00::1

If the IP wasn’t assigned, follow the OS configuration below.

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Configuring IPv6 on Your Operating System

Linux — Debian / Ubuntu

Netplan Configuration

File: /etc/netplan/01-netcfg.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    ens18:
      addresses:
        - 2a0e:xxxx:yyyy:zz00::1/64
      gateway6: GTW_IP
      nameservers:
        addresses:
          - 2a0e:xxxx:yyyy:zz00::1
          - 2606:4700:4700::1111

Apply:

sudo netplan apply

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ifupdown Configuration

File: /etc/network/interfaces

auto ens18
iface ens18 inet6 static
    address 2a0e:xxxx:yyyy:zz00::1
    netmask 64
    gateway GTW_IP

Restart:

systemctl restart networking

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Linux — RHEL / AlmaLinux / Rocky

File: /etc/sysconfig/network-scripts/ifcfg-eth0

IPV6INIT=yes
IPV6ADDR=2a0e:xxxx:yyyy:zz00::1/64
IPV6_DEFAULTGW=GTW_IP
DNS1=2606:4700:4700::1111

Apply:

nmcli connection reload
nmcli connection up eth0

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Windows Server

Open PowerShell:

New-NetIPAddress -InterfaceAlias "Ethernet" -IPAddress "2a0e:xxxx:yyyy:zz00::1" -PrefixLength 64 -DefaultGateway "GTW_IP"

Add DNS:

Set-DnsClientServerAddress -InterfaceAlias "Ethernet" -ServerAddresses "2a0e:xxxx:yyyy:zz00::1","2606:4700:4700::1111"

Verify:

ipconfig

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Testing IPv6

Ping IPv6:

ping6 ipv6.google.com

Check outbound IPv6:

curl -6 ifconfig.co

If IPv6 does not work, check:

• Correct assigned IP

• Gateway (fe80::1)

• Netmask /64

• Firewall rules

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Summary

• IPv6 can be enabled during order or after service delivery.

• If the /64 subnet does not appear → disable IPv6, save, re-enable.

• The first IPv6 of the prefix is assigned automatically.

• Manual configuration is available for Linux and Windows.

• IPv6 testing tools are included at the end.