%% You should probably cite rfc5739 instead of this I-D.
@techreport{ietf-ipsecme-ikev2-ipv6-config-03,
    number =    {draft-ietf-ipsecme-ikev2-ipv6-config-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-ipsecme-ikev2-ipv6-config/03/},
    author =    {Cheryl R. Madson and Pasi Eronen and Julien Laganier},
    title =     {{IPv6 Configuration in Internet Key Exchange Protocol Version 2 (IKEv2)}},
    pagetotal = 32,
    year =      2009,
    month =     oct,
    day =       26,
    abstract =  {When Internet Key Exchange Protocol version 2 (IKEv2) is used for remote VPN access (client to VPN gateway), the gateway assigns the client an IP address from the internal network using IKEv2 configuration payloads. The configuration payloads specified in RFC 4306 work well for IPv4 but make it difficult to use certain features of IPv6. This document specifies new configuration attributes for IKEv2 that allows the VPN gateway to assign IPv6 prefixes to clients, enabling all features of IPv6 to be used with the client-gateway "virtual link". This document defines an Experimental Protocol for the Internet community.},
}