2.7 Fixed IP IP-Addresses are used in computer networks based on the internet protocol (IP) to transport data from the sender to the addressee. The internet is an example of such a computer network. To be able to address a webserver the IP-address must be known in order to allow the webbrowser to download data from that webserver and show it to the user. Therefore servers usually always have an IP address which stays the same (fixed IP address) The most common notation of the IP addresses used today consists of four figures, between 0 and 255, which are separated by a colon, e.g. 127.0.0.1. To be able to use the webserver on the STD32 the mobile network provider must assign a fixed IP address to the device and allow it a connection to the internet. This function is typically available on request only or with special GSM network providers.