# IPv6 Pricing

[IP addresses](https://www.digitalocean.com/community/tutorials/understanding-ip-addresses-subnets-and-cidr-notation-for-networking) let machines communicate across a network. DigitalOcean Droplets are assigned IPv4 addresses by default. Enabling IPv6 on a Droplet gives you access to its 16 additional IPv6 addresses.

IPv6 support is available for Droplets at no additional cost.

Because all IPv6 traffic uses a public network interface, [bandwidth charges](https://docs.digitalocean.com/platform/billing/bandwidth/index.html.md) apply.