ISO 21210:2012规定了与通过全球互联网通信网络进行通信的两个或多个ITS站点之间的IPv6网络相关的网络协议功能。 ISO 21210:2012假定读者熟悉ISO 21210:2012中使用的各个IPv6协议块的“征求意见”（RFC）中的IETF规范。它没有定义新的协议、IPv6层的新消息交换或新的数据结构。它定义了如何组合标准IETF协议，以便其站点可以使用IPv6协议系列彼此通信。ISO 24102中定义了在IPv6层和ITS站点架构的其他组件之间共享信息的过程。

ISO 21210:2012 specifies networking protocol functionalities related to IPv6 networking between two or more ITS stations communicating over the global Internet communication network. ISO 21210:2012 assumes that the reader is familiar with IETF specifications found in "Request for Comments" (RFCs) of individual IPv6 protocol blocks used within ISO 21210:2012. It does not define a new protocol, a new exchange of messages at the IPv6 layer, or new data structures. It defines how standard IETF protocols are combined so that ITS stations can communicate with one another using the IPv6 family of protocols. Procedures defined to share information between the IPv6 layer and other components of the ITS station architecture are defined in ISO 24102.