# Configuring an IPv6 License

You must configure an IPv6 license before you can use any IPv6 commands on the E Series router.

license ipv6

- Use to specify an IPv6 license.
- Purchase an IPv6 license to allow IPv6 configuration on the E Series router.

  | Note: Acquire the license from Juniper Networks Customer Services and Support or your Juniper Networks sales representative.

- Example
  host1(config)#license ipv6 license-value
- Use the no version to disable the license.
- See license ipv6