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IP-Adresses are used in networks which are working with the Internet-Protokoll (IP) to transport datas from sender to a specific receiver. As Example we can take the Internet, or private networks, which can be also connections between Dreamboxes and PCs.

IP Adresses in V4 are 4 numbers inbetween 0 and 255, seperated by a dot, eg., which is used for "localhost".

There are three categories:

Here we just talk about private IP-Adresses, like we need them in our private network with our Dreambox.

Private IP-Adresses

Private IP-Adresses are belonging to a special Ip-Adress-Range, which is not routet at the Internet. They can be used by everybody for his own LAN.

So you can give IP-Adresses in your LAN by your own. But: Therefore should only be taken Adresses from private networks, as in RFC 1918 listed.

This would be the following:

The Internet Assigned Numbers Authority (IANA) has reserved the
following three blocks of the IP address space for private internets:        -  (10/8 prefix)      -  (172.16/12 prefix)     - (192.168/16 prefix)

The most used adresses may be the 192.168.x.x.