Internet of things devices are becoming more widespread in their use so it has become necessary to prepare the entirety of the Internet for the increased number of these devices. The key issue currently affecting the global internet is the lack of available addresses using the IPv4, making the transition to IPv6 inevitable in the near future. In order for internet of things devices to be ready for this transition, it is necessary to conduct the analysis of those device’s behaviour and the analysis of the application protocols used by those devices across both versions of the Internet Protocol. Since Internet of things devices are small devices which have efficiency as their main goal, it’s necessary to conduct an analysis of the protocols used by Internet of things applications so that their efficiency can be measured. In this paper, a comparative analysis of the Constrained Application Protocol and the Hypertext Transfer Protocol, which is the most commonly used protocol in web applications, is conducted. In order to communicate with Internet of Things devices that use CoAP for their communication, it's necessary to implement a proxy responsible for transferring the traffic between the protocols. This proxy, although unnecessary, was used even when there was exclusively HTTP communication, this was done so that the test environment would be equal when using both protocols, and so that the analysis of the data transfer wouldn’t have more components in one form of communication than it does in the other. Results of these analyses show a difference in CoAP and HTTP communications, they show an advantage in implementing a proxy, and they clearly show a similarity in IPv4 and IPv6 communication.