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Every DigitalFyre VPS is assigned a public IPv4 address and a /64 IPv6 subnet. Your addresses are listed on your service page in the Client Portal with copy-to-clipboard buttons.

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IPv4

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Primary IPv4

Your primary IPv4 address is pre-configured during provisioning. No manual setup is needed — it is ready to use as soon as your OS is installed.

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Additional IPv4 Addresses

Additional IPv4 addresses are a paid add-on, available upon request and evaluated on a case-by-case basis. To request one, open a support ticket at console.digitalfyre.com with details about your intended use.
SSL and email are not considered valid justification for additional IPv4 or IPv6 address allocation.
If you are assigned an additional IPv4 address, it must be configured manually within your OS: 
# View your current Netplan config
cat /etc/netplan/*.yaml

# Edit the config file
nano /etc/netplan/01-netcfg.yaml
Add the additional address under your interface’s addresses list:
network:
  version: 2
  ethernets:
    eth0:
      addresses:
        - PRIMARY_IP/CIDR
        - ADDITIONAL_IP/32
Apply the configuration:
netplan apply

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IPv6

Every VPS includes a /64 IPv6 subnet at no additional cost. Additional /64 subnets may be assigned free of charge provided a valid and technically justified use case is submitted — contact support to request one.
SSL and email are not considered valid justification for additional IPv4 or IPv6 address allocation.
IPv6 addresses must be configured manually within your OS. Choose any address from your assigned subnet — for example, if your subnet is 2001:db8:abcd:1234::/64, you might use 2001:db8:abcd:1234::1. 
network:
  version: 2
  ethernets:
    eth0:
      addresses:
        - YOUR_IPV4/CIDR
        - 2001:db8:abcd:1234::1/64
      gateway6: YOUR_IPV6_GATEWAY
Apply:
netplan apply
Verify the address is assigned and connectivity is working: 
ip -6 addr show eth0
ping6 2001:4860:4860::8888

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DNS Records

If you are hosting services on your IPv6 address, create an AAAA record in your domain’s DNS pointing to the configured IPv6 address.