An arrangement and a method relating to ip network access

The invention relates to a to claims end-user to accessing of IP network (registers) device and method. Comprising a user) and access network accessing server, Web server and information server. The end-user source comprises is a turning on the first device for by the second device of mobile communication system for information server communication server communication. The accessing/to register process a first and second platform; and information server control register a sequence a disposable password (OTP) and first platform; and disposable password (OTP) are, define the suspense form of a user certificate is placed in the register the section is a base, with end-user on the fixed on the server to register.